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Diffstat (limited to 'docs/configuration/protocols')
| -rw-r--r-- | docs/configuration/protocols/ospf.rst | 691 |
1 files changed, 473 insertions, 218 deletions
diff --git a/docs/configuration/protocols/ospf.rst b/docs/configuration/protocols/ospf.rst index 7d9950e6..7270febc 100644 --- a/docs/configuration/protocols/ospf.rst +++ b/docs/configuration/protocols/ospf.rst @@ -20,11 +20,8 @@ OSPFv2 (IPv4) General Configuration --------------------- -.. cfgcmd:: set protocols ospf area <number> - - This command is udes to enable the OSPF process. The area number can be - specified in decimal notation in the range from 0 to 4294967295. Or it - can be specified in dotted decimal notation similar to ip address. +VyOS does not have a special command to start the OSPF process. The OSPF process +starts when the first ospf enabled interface is configured. .. cfgcmd:: set protocols ospf area <number> network <A.B.C.D/M> @@ -32,40 +29,48 @@ General Configuration an address from defined range then the command enables OSPF on this interface so router can provide network information to the other ospf routers via this interface. + + This command is also used to enable the OSPF process. The area number can be + specified in decimal notation in the range from 0 to 4294967295. Or it + can be specified in dotted decimal notation similar to ip address. .. cfgcmd:: set protocols ospf auto-cost reference-bandwidth <number> - This command sets the reference bandwidth for cost calculations, where - bandwidth can be in range from 1 to 4294967, specified in Mbits/s. The - default is 100Mbit/s (i.e. a link of bandwidth 100Mbit/s or higher will - have a cost of 1. Cost of lower bandwidth links will be scaled with + This command sets the reference bandwidth for cost calculations, where + bandwidth can be in range from 1 to 4294967, specified in Mbits/s. The + default is 100Mbit/s (i.e. a link of bandwidth 100Mbit/s or higher will + have a cost of 1. Cost of lower bandwidth links will be scaled with reference to this cost). .. cfgcmd:: set protocols ospf parameters router-id <rid> This command sets the router-ID of the OSPF process. The router-ID may be an - IP address of the router, but need not be – it can be any arbitrary 32bit number. - However it MUST be unique within the entire OSPF domain to the OSPF speaker – bad - things will happen if multiple OSPF speakers are configured with the same router-ID! + IP address of the router, but need not be – it can be any arbitrary 32bit + number. However it MUST be unique within the entire OSPF domain to the OSPF + speaker – bad things will happen if multiple OSPF speakers are configured + with the same router-ID! Optional Configuration ---------------------- -.. cfgcmd:: set protocols ospf default-information originate [always] [metric <number>] [metric-type <1|2>] [route-map <name>] +.. cfgcmd:: set protocols ospf default-information originate [always] + [metric <number>] [metric-type <1|2>] [route-map <name>] Originate an AS-External (type-5) LSA describing a default route into all external-routing capable areas, of the specified metric and metric type. - If the :cfgcmd:`always` keyword is given then the default is always advertised, - even when there is no default present in the routing table. The argument - :cfgcmd:`route-map` specifies to advertise the default route if the route map - is satisfied. + If the :cfgcmd:`always` keyword is given then the default is always + advertised, even when there is no default present in the routing table. + The argument :cfgcmd:`route-map` specifies to advertise the default route + if the route map is satisfied. .. cfgcmd:: set protocols ospf distance global <distance> - This command change distance value of OSPF. The distance range is 1 to 255. + This command change distance value of OSPF globally. + The distance range is 1 to 255. -.. cfgcmd:: set protocols ospf distance ospf <external|inter-area|intra-area> <distance> +.. cfgcmd:: set protocols ospf distance ospf <external|inter-area|intra-area> + <distance> This command change distance value of OSPF. The arguments are the distance values for external routes, inter-area routes and intra-area routes @@ -80,7 +85,8 @@ Optional Configuration :cfgcmd:`detail` argument, all changes in adjacency status are shown. Without :cfgcmd:`detail`, only changes to full or regressions are shown. -.. cfgcmd:: set protocols ospf max-metric router-lsa <administrative|on-shutdown <seconds>|on-startup <seconds>> +.. cfgcmd:: set protocols ospf max-metric router-lsa + <administrative|on-shutdown <seconds>|on-startup <seconds>> This enables :rfc:`3137` support, where the OSPF process describes its transit links in its router-LSA as having infinite distance so that other @@ -94,65 +100,76 @@ Optional Configuration and/or for a period of seconds prior to shutdown with the :cfgcmd:`on-shutdown <seconds>` command. The time range is 5 to 86400. -.. cfgcmd:: set protocols ospf parameters abr-type <cisco|ibm|shortcut|standard> +.. cfgcmd:: set protocols ospf parameters abr-type + <cisco|ibm|shortcut|standard> This command selects ABR model. OSPF router supports four ABR models: - **cisco** – a router will be considered as ABR if it has several configured links to - the networks in different areas one of which is a backbone area. Moreover, the link - to the backbone area should be active (working). - **ibm** – identical to "cisco" model but in this case a backbone area link may not be active. + **cisco** – a router will be considered as ABR if it has several configured + links to the networks in different areas one of which is a backbone area. + Moreover, the link to the backbone area should be active (working). + **ibm** – identical to "cisco" model but in this case a backbone area link + may not be active. **standard** – router has several active links to different areas. - **shortcut** – identical to "standard" but in this model a router is allowed to use a - connected areas topology without involving a backbone area for inter-area connections. + **shortcut** – identical to "standard" but in this model a router is + allowed to use a connected areas topology without involving a backbone + area for inter-area connections. - Detailed information about "cisco" and "ibm" models differences can be found in :rfc:`3509`. - A "shortcut" model allows ABR to create routes between areas based on the topology of the - areas connected to this router but not using a backbone area in case if non-backbone route - will be cheaper. For more information about "shortcut" model, see :t:`ospf-shortcut-abr-02.txt` + Detailed information about "cisco" and "ibm" models differences can be + found in :rfc:`3509`. A "shortcut" model allows ABR to create routes + between areas based on the topology of the areas connected to this router + but not using a backbone area in case if non-backbone route will be + cheaper. For more information about "shortcut" model, + see :t:`ospf-shortcut-abr-02.txt` .. cfgcmd:: set protocols ospf parameters rfc1583-compatibility - :rfc:`2328`, the successor to :rfc:`1583`, suggests according to section G.2 (changes) - in section 16.4.1 a change to the path preference algorithm that prevents possible - routing loops that were possible in the old version of OSPFv2. More specifically it - demands that inter-area paths and intra-area backbone path are now of equal preference - but still both preferred to external paths. + :rfc:`2328`, the successor to :rfc:`1583`, suggests according to section + G.2 (changes) in section 16.4.1 a change to the path preference algorithm + that prevents possible routing loops that were possible in the old version + of OSPFv2. More specifically it demands that inter-area paths and + intra-area backbone path are now of equal preference but still both + preferred to external paths. This command should NOT be set normally. .. cfgcmd:: set protocols ospf passive-interface <interface> - This command specifies interface as passive. Passive interface advertises its address, - but does not run the OSPF protocol (adjacencies are not formed and hello packets are - not generated). + This command specifies interface as passive. Passive interface advertises + its address, but does not run the OSPF protocol (adjacencies are not formed + and hello packets are not generated). .. cfgcmd:: set protocols ospf passive-interface default - This command specifies all interfaces as passive by default. Because this command changes - the configuration logic to a default passive; therefore, interfaces where router adjacencies - are expected need to be configured with the :cfgcmd:`passive-interface-exclude` command. + This command specifies all interfaces as passive by default. Because this + command changes the configuration logic to a default passive; therefore, + interfaces where router adjacencies are expected need to be configured + with the :cfgcmd:`passive-interface-exclude` command. .. cfgcmd:: set protocols ospf passive-interface-exclude <interface> - This command allows exclude interface from passive state. This command is used if the - command :cfgcmd:`passive-interface default` was configured. + This command allows exclude interface from passive state. This command is + used if the command :cfgcmd:`passive-interface default` was configured. .. cfgcmd:: set protocols ospf refresh timers <seconds> - The router automatically updates link-state information with its neighbors. Only an obsolete - information is updated which age has exceeded a specific threshold. This parameter changes - a threshold value, which by default is 1800 seconds (half an hour). The value is applied - to the whole OSPF router. The timer range is 10 to 1800. - -.. cfgcmd:: set protocols ospf timers throttle spf <delay|initial-holdtime|max-holdtime> <seconds> - - This command sets the initial delay, the initial-holdtime and the maximum-holdtime between - when SPF is calculated and the event which triggered the calculation. The times are specified - in milliseconds and must be in the range of 0 to 600000 milliseconds. :cfgcmd:`delay` sets - the initial SPF schedule delay in milliseconds. The default value is 200 ms. - :cfgcmd:`initial-holdtime` sets the minimum hold time between two consecutive SPF calculations. - The default value is 1000 ms. :cfgcmd:`max-holdtime` sets the maximum wait time between two + The router automatically updates link-state information with its neighbors. + Only an obsolete information is updated which age has exceeded a specific + threshold. This parameter changes a threshold value, which by default is + 1800 seconds (half an hour). The value is applied to the whole OSPF router. + The timer range is 10 to 1800. + +.. cfgcmd:: set protocols ospf timers throttle spf + <delay|initial-holdtime|max-holdtime> <seconds> + + This command sets the initial delay, the initial-holdtime and the + maximum-holdtime between when SPF is calculated and the event which + triggered the calculation. The times are specified in milliseconds and must + be in the range of 0 to 600000 milliseconds. :cfgcmd:`delay` sets the + initial SPF schedule delay in milliseconds. The default value is 200 ms. + :cfgcmd:`initial-holdtime` sets the minimum hold time between two + consecutive SPF calculations. The default value is 1000 ms. + :cfgcmd:`max-holdtime` sets the maximum wait time between two consecutive SPF calculations. The default value is 10000 ms. @@ -161,108 +178,147 @@ Areas Configuration .. cfgcmd:: set protocols ospf area <number> area-type stub - This command specifies the area to be a Stub Area. That is, an area where no router - originates routes external to OSPF and hence an area where all external routes are - via the ABR(s). Hence, ABRs for such an area do not need to pass AS-External LSAs - (type-5) or ASBR-Summary LSAs (type-4) into the area. They need only pass - Network-Summary (type-3) LSAs into such an area, along with a default-route summary. + This command specifies the area to be a Stub Area. That is, an area where + no router originates routes external to OSPF and hence an area where all + external routes are via the ABR(s). Hence, ABRs for such an area do not + need to pass AS-External LSAs (type-5) or ASBR-Summary LSAs (type-4) into + the area. They need only pass Network-Summary (type-3) LSAs into such an + area, along with a default-route summary. .. cfgcmd:: set protocols ospf area <number> area-type stub no-summary - This command specifies the area to be a Totally Stub Area. In addition to stub area - limitations this area type prevents an ABR from injecting Network-Summary (type-3) - LSAs into the specified stub area. Only default summary route is allowed. + This command specifies the area to be a Totally Stub Area. In addition to + stub area limitations this area type prevents an ABR from injecting + Network-Summary (type-3) LSAs into the specified stub area. Only default + summary route is allowed. -.. cfgcmd:: set protocols ospf area <number> area-type stub default-cost <number> +.. cfgcmd:: set protocols ospf area <number> area-type stub default-cost + <number> - This command sets the cost of default-summary LSAs announced to stubby areas. - The cost range is 0 to 16777215. + This command sets the cost of default-summary LSAs announced to stubby + areas. The cost range is 0 to 16777215. .. cfgcmd:: set protocols ospf area <number> area-type nssa - This command specifies the area to be a Not So Stubby Area. External routing information - is imported into an NSSA in Type-7 LSAs. Type-7 LSAs are similar to Type-5 AS-external - LSAs, except that they can only be flooded into the NSSA. In order to further propagate - the NSSA external information, the Type-7 LSA must be translated to a Type-5 - AS-external-LSA by the NSSA ABR. + This command specifies the area to be a Not So Stubby Area. External + routing information is imported into an NSSA in Type-7 LSAs. Type-7 LSAs + are similar to Type-5 AS-external LSAs, except that they can only be + flooded into the NSSA. In order to further propagate the NSSA external + information, the Type-7 LSA must be translated to a Type-5 AS-external-LSA + by the NSSA ABR. .. cfgcmd:: set protocols ospf area <number> area-type nssa no-summary - This command specifies the area to be a NSSA Totally Stub Area. ABRs for such an area do - not need to pass Network-Summary (type-3) LSAs (except the default summary route), - ASBR-Summary LSAs (type-4) and AS-External LSAs (type-5) into the area. But Type-7 LSAs - that convert to Type-5 at the NSSA ABR are allowed. + This command specifies the area to be a NSSA Totally Stub Area. ABRs for + such an area do not need to pass Network-Summary (type-3) LSAs (except the + default summary route), ASBR-Summary LSAs (type-4) and AS-External LSAs + (type-5) into the area. But Type-7 LSAs that convert to Type-5 at the NSSA + ABR are allowed. -.. cfgcmd:: set protocols ospf area <number> area-type nssa default-cost <number> +.. cfgcmd:: set protocols ospf area <number> area-type nssa default-cost + <number> This command sets the default cost of LSAs announced to NSSA areas. The cost range is 0 to 16777215. -.. cfgcmd:: set protocols ospf area <number> area-type nssa translate <always|candidate|never> +.. cfgcmd:: set protocols ospf area <number> area-type nssa translate + <always|candidate|never> - Specifies whether this NSSA border router will unconditionally translate Type-7 LSAs into - Type-5 LSAs. When role is Always, Type-7 LSAs are translated into Type-5 LSAs regardless - of the translator state of other NSSA border routers. When role is Candidate, this router - participates in the translator election to determine if it will perform the translations - duties. When role is Never, this router will never translate Type-7 LSAs into Type-5 LSAs. + Specifies whether this NSSA border router will unconditionally translate + Type-7 LSAs into Type-5 LSAs. When role is Always, Type-7 LSAs are + translated into Type-5 LSAs regardless of the translator state of other + NSSA border routers. When role is Candidate, this router participates in + the translator election to determine if it will perform the translations + duties. When role is Never, this router will never translate Type-7 LSAs + into Type-5 LSAs. .. cfgcmd:: set protocols ospf area <number> authentication plaintext-password - This command specifies that simple password authentication should be used for the given - area. The password must also be configured on a per-interface basis. + This command specifies that simple password authentication should be used + for the given area. The password must also be configured on a per-interface + basis. .. cfgcmd:: set protocols ospf area <number> authentication md5 - This command specify that OSPF packets must be authenticated with MD5 HMACs within the - given area. Keying material must also be configured on a per-interface basis. + This command specify that OSPF packets must be authenticated with MD5 HMACs + within the given area. Keying material must also be configured on a + per-interface basis. + +.. cfgcmd:: set protocols ospf area <number> range <A.B.C.D/M> [cost <number>] + + This command summarizes intra area paths from specified area into one + summary-LSA (Type-3) announced to other areas. This command can be used + only in ABR and ONLY router-LSAs (Type-1) and network-LSAs (Type-2) + (i.e. LSAs with scope area) can be summarized. AS-external-LSAs (Type-5) + can’t be summarized - their scope is AS. The optional argument + :cfgcmd:`cost` specifies the aggregated link metric. The metric range is 0 + to 16777215. + +.. cfgcmd:: set protocols ospf area <number> range <A.B.C.D/M> not-advertise + + This command instead of summarizing intra area paths filter them - i.e. + intra area paths from this range are not advertised into other areas. + This command makes sense in ABR only. + +.. cfgcmd:: set protocols ospf area <number> range <A.B.C.D/M> substitute + <E.F.G.H/M> + + One Type-3 summary-LSA with routing info <E.F.G.H/M> is announced into + backbone area if defined area contains at least one intra-area network + (i.e. described with router-LSA or network-LSA) from range <A.B.C.D/M>. + This command makes sense in ABR only. .. cfgcmd:: set protocols ospf area <number> shortcut <default|disable|enable> - This parameter allows to "shortcut" routes (non-backbone) for inter-area routes. There - are three modes available for routes shortcutting: + This parameter allows to "shortcut" routes (non-backbone) for inter-area + routes. There are three modes available for routes shortcutting: - **default** – this area will be used for shortcutting only if ABR does not have a link - to the backbone area or this link was lost. - **enable** – the area will be used for shortcutting every time the route that goes through - it is cheaper. + **default** – this area will be used for shortcutting only if ABR does not + have a link to the backbone area or this link was lost. + **enable** – the area will be used for shortcutting every time the route + that goes through it is cheaper. **disable** – this area is never used by ABR for routes shortcutting. .. cfgcmd:: set protocols ospf area <number> virtual-link <A.B.C.D> Provides a backbone area coherence by virtual link establishment. - In general, OSPF protocol requires a backbone area (area 0) to be coherent and fully - connected. I.e. any backbone area router must have a route to any other backbone area - router. Moreover, every ABR must have a link to backbone area. However, it is not always - possible to have a physical link to a backbone area. In this case between two ABR (one - of them has a link to the backbone area) in the area (not stub area) a virtual link is organized. + In general, OSPF protocol requires a backbone area (area 0) to be coherent + and fully connected. I.e. any backbone area router must have a route to any + other backbone area router. Moreover, every ABR must have a link to + backbone area. However, it is not always possible to have a physical link + to a backbone area. In this case between two ABR (one of them has a link to + the backbone area) in the area (not stub area) a virtual link is organized. <number> – area identifier through which a virtual link goes. - <A.B.C.D> – ABR router-id with which a virtual link is established. Virtual link must be - configured on both routers. + <A.B.C.D> – ABR router-id with which a virtual link is established. Virtual + link must be configured on both routers. - Formally, a virtual link looks like a point-to-point network connecting two ABR from one - area one of which physically connected to a backbone area. This pseudo-network is considered - to belong to a backbone area. + Formally, a virtual link looks like a point-to-point network connecting two + ABR from one area one of which physically connected to a backbone area. + This pseudo-network is considered to belong to a backbone area. Interfaces Configuration ------------------------ -.. cfgcmd:: set interfaces <inttype> <intname> ip ospf authentication plaintext-password <text> +.. cfgcmd:: set interfaces <inttype> <intname> ip ospf authentication + plaintext-password <text> - This command sets OSPF authentication key to a simple password. After setting, all OSPF - packets are authenticated. Key has length up to 8 chars. + This command sets OSPF authentication key to a simple password. After + setting, all OSPF packets are authenticated. Key has length up to 8 chars. - Simple text password authentication is insecure and deprecated in favour of MD5 HMAC - authentication. + Simple text password authentication is insecure and deprecated in favour of + MD5 HMAC authentication. -.. cfgcmd:: set interfaces <inttype> <intname> ip ospf authentication md5 key-id <id> md5-key <text> +.. cfgcmd:: set interfaces <inttype> <intname> ip ospf authentication md5 + key-id <id> md5-key <text> - This command specifys that MD5 HMAC authentication must be used on this interface. It sets - OSPF authentication key to a cryptographic password. Key-id identifies secret key used to - create the message digest. This ID is part of the protocol and must be consistent across - routers on a link. The key can be long up to 16 chars (larger strings will be truncated), + This command specifys that MD5 HMAC authentication must be used on this + interface. It sets OSPF authentication key to a cryptographic password. + Key-id identifies secret key used to create the message digest. This ID + is part of the protocol and must be consistent across routers on a link. + The key can be long up to 16 chars (larger strings will be truncated), and is associated with the given key-id. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf bandwidth <number> @@ -272,66 +328,73 @@ Interfaces Configuration .. cfgcmd:: set interfaces <inttype> <intname> ip ospf cost <number> - This command sets link cost for the specified interface. The cost value is set to - router-LSA’s metric field and used for SPF calculation. The cost range is 1 to 65535. + This command sets link cost for the specified interface. The cost value is + set to router-LSA’s metric field and used for SPF calculation. The cost + range is 1 to 65535. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf dead-interval <number> - Set number of seconds for router Dead Interval timer value used for Wait Timer and - Inactivity Timer. This value must be the same for all routers attached to a common - network. The default value is 40 seconds. The interval range is 1 to 65535. + Set number of seconds for router Dead Interval timer value used for Wait + Timer and Inactivity Timer. This value must be the same for all routers + attached to a common network. The default value is 40 seconds. The + interval range is 1 to 65535. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf hello-interval <number> - Set number of seconds for Hello Interval timer value. Setting this value, Hello - packet will be sent every timer value seconds on the specified interface. This - value must be the same for all routers attached to a common network. The default - value is 10 seconds. The interval range is 1 to 65535. + Set number of seconds for Hello Interval timer value. Setting this value, + Hello packet will be sent every timer value seconds on the specified + interface. This value must be the same for all routers attached to a + common network. The default value is 10 seconds. The interval range is 1 + to 65535. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf mtu-ignore - This command disables check of the MTU value in the OSPF DBD packets. Thus, use - of this command allows the OSPF adjacency to reach the FULL state even though - there is an interface MTU mismatch between two OSPF routers. + This command disables check of the MTU value in the OSPF DBD packets. Thus, + use of this command allows the OSPF adjacency to reach the FULL state even + though there is an interface MTU mismatch between two OSPF routers. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf network <type> - This command allows to specify the distribution type for the network connected - to this interface: + This command allows to specify the distribution type for the network + connected to this interface: **broadcast** – broadcast IP addresses distribution. **non-broadcast** – address distribution in NBMA networks topology. - **point-to-multipoint** – address distribution in point-to-multipoint networks. + **point-to-multipoint** – address distribution in point-to-multipoint + networks. **point-to-point** – address distribution in point-to-point networks. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf priority <number> - This command sets Router Priority integer value. The router with the highest - priority will be more eligible to become Designated Router. Setting the value - to 0, makes the router ineligible to become Designated Router. The default value - is 1. The interval range is 0 to 255. + This command sets Router Priority integer value. The router with the + highest priority will be more eligible to become Designated Router. + Setting the value to 0, makes the router ineligible to become + Designated Router. The default value is 1. The interval range is 0 to 255. -.. cfgcmd:: set interfaces <inttype> <intname> ip ospf retransmit-interval <number> +.. cfgcmd:: set interfaces <inttype> <intname> ip ospf retransmit-interval + <number> - This command sets number of seconds for RxmtInterval timer value. This value is used - when retransmitting Database Description and Link State Request packets if acknowledge - was not received. The default value is 5 seconds. The interval range is 3 to 65535. + This command sets number of seconds for RxmtInterval timer value. This + value is used when retransmitting Database Description and Link State + Request packets if acknowledge was not received. The default value is 5 + seconds. The interval range is 3 to 65535. .. cfgcmd:: set interfaces <inttype> <intname> ip ospf transmit-delay <number> - This command sets number of seconds for InfTransDelay value. It allows to set and adjust - for each interface the delay interval before starting the synchronizing process of the - router's database with all neighbors. The default value is 1 seconds. The interval range - is 3 to 65535. + This command sets number of seconds for InfTransDelay value. It allows to + set and adjust for each interface the delay interval before starting the + synchronizing process of the router's database with all neighbors. The + default value is 1 seconds. The interval range is 3 to 65535. Manual Neighbor Configuration ----------------------------- -OSPF routing devices normally discover their neighbors dynamically by listening to the broadcast -or multicast hello packets on the network. Because an NBMA network does not support broadcast (or -multicast), the device cannot discover its neighbors dynamically, so you must configure all the -neighbors statically. +OSPF routing devices normally discover their neighbors dynamically by +listening to the broadcast or multicast hello packets on the network. +Because an NBMA network does not support broadcast (or multicast), the +device cannot discover its neighbors dynamically, so you must configure all +the neighbors statically. .. cfgcmd:: set protocols ospf neighbor <A.B.C.D> @@ -339,39 +402,26 @@ neighbors statically. .. cfgcmd:: set protocols ospf neighbor <A.B.C.D> poll-interval <seconds> - This command specifies the length of time, in seconds, before the routing device sends hello - packets out of the interface before it establishes adjacency with a neighbor. The range is 1 - to 65535 seconds. The default value is 60 seconds. + This command specifies the length of time, in seconds, before the routing + device sends hello packets out of the interface before it establishes + adjacency with a neighbor. The range is 1 to 65535 seconds. The default + value is 60 seconds. .. cfgcmd:: set protocols ospf neighbor <A.B.C.D> priority <number> - This command specifies the router priority value of the nonbroadcast neighbor associated with - the IP address specified. The default is 0. This keyword does not apply to point-to-multipoint - interfaces. + This command specifies the router priority value of the nonbroadcast + neighbor associated with the IP address specified. The default is 0. + This keyword does not apply to point-to-multipoint interfaces. Redistribution Configuration ---------------------------- -.. cfgcmd:: set protocols ospf redistribute bgp +.. cfgcmd:: set protocols ospf redistribute <route source> - Redistribute BGP routes to OSPF process. - -.. cfgcmd:: set protocols ospf redistribute connected - - Redistribute connected routes to OSPF process. - -.. cfgcmd:: set protocols ospf redistribute kernel - - Redistribute kernel routes to OSPF process. - -.. cfgcmd:: set protocols ospf redistribute rip - - Redistribute RIP routes to OSPF process. - -.. cfgcmd:: set protocols ospf redistribute static - - Redistribute static routes to OSPF process. + This command redistributes routing information from the given route source + to the OSPF process. There are five modes available for route source: bgp, + connected, kernel, rip, static. .. cfgcmd:: set protocols ospf default-metric <number> @@ -380,29 +430,33 @@ Redistribution Configuration .. cfgcmd:: set protocols ospf redistribute <route source> metric <number> - This command specifies metric for redistributed routes from given route source. There - are five modes available for route source: bgp, connected, kernel, rip, static. The - metric range is 1 to 16. + This command specifies metric for redistributed routes from given route + source. There are five modes available for route source: bgp, connected, + kernel, rip, static. The metric range is 1 to 16. .. cfgcmd:: set protocols ospf redistribute <route source> metric-type <1|2> - This command specifies metric type for redistributed routes. Difference between two metric - types that metric type 1 is a metric which is "commensurable" with inner OSPF links. When - calculating a metric to the external destination, the full path metric is calculated as a - metric sum path of a router which had advertised this link plus the link metric. Thus, a - route with the least summary metric will be selected. If external link is advertised with - metric type 2 the path is selected which lies through the router which advertised this link - with the least metric despite of the fact that internal path to this router is longer (with - more cost). However, if two routers advertised an external link and with metric type 2 the - preference is given to the path which lies through the router with a shorter internal path. - If two different routers advertised two links to the same external destimation but with - different metric type, metric type 1 is preferred. If type of a metric left undefined the - router will consider these external links to have a default metric type 2. + This command specifies metric type for redistributed routes. Difference + between two metric types that metric type 1 is a metric which is + "commensurable" with inner OSPF links. When calculating a metric to the + external destination, the full path metric is calculated as a metric sum + path of a router which had advertised this link plus the link metric. + Thus, a route with the least summary metric will be selected. If external + link is advertised with metric type 2 the path is selected which lies + through the router which advertised this link with the least metric + despite of the fact that internal path to this router is longer (with more + cost). However, if two routers advertised an external link and with metric + type 2 the preference is given to the path which lies through the router + with a shorter internal path. If two different routers advertised two + links to the same external destimation but with different metric type, + metric type 1 is preferred. If type of a metric left undefined the router + will consider these external links to have a default metric type 2. .. cfgcmd:: set protocols ospf redistribute <route source> route-map <name> - This command allows to use route map to filter redistributed routes from given route source. - There are five modes available for route source: bgp, connected, kernel, rip, static. + This command allows to use route map to filter redistributed routes from + given route source. There are five modes available for route source: bgp, + connected, kernel, rip, static. Operational Mode Commands @@ -420,8 +474,8 @@ Operational Mode Commands .. opcmd:: show ip ospf neighbor detail - This command displays the neighbors information in a detailed form, not just - a summary table. + This command displays the neighbors information in a detailed form, not + just a summary table. .. code-block:: none @@ -459,18 +513,18 @@ Operational Mode Commands .. opcmd:: show ip ospf neighbor <A.B.C.D> - This command displays the neighbors information in a detailed form for a neighbor - whose IP address is specified. + This command displays the neighbors information in a detailed form for a + neighbor whose IP address is specified. .. opcmd:: show ip ospf neighbor <intname> This command displays the neighbors status for a neighbor on the specified interface. -.. opcmd:: show ip ospf interface [intname] +.. opcmd:: show ip ospf interface [<intname>] - This command displays state and configuration of OSPF the specified interface, - or all interfaces if no interface is given. + This command displays state and configuration of OSPF the specified + interface, or all interfaces if no interface is given. .. code-block:: none @@ -500,8 +554,8 @@ Operational Mode Commands .. opcmd:: show ip ospf route - This command displays the OSPF routing table, as determined by the most recent - SPF calculation. + This command displays the OSPF routing table, as determined by the most + recent SPF calculation. .. code-block:: none @@ -527,23 +581,24 @@ Operational Mode Commands The table consists of following data: -**OSPF network routing table** – includes a list of acquired routes for all -accessible networks (or aggregated area ranges) of OSPF system. "IA" flag means -that route destination is in the area to which the router is not connected, i.e. -it’s an inter-area path. In square brackets a summary metric for all links through -which a path lies to this network is specified. "via" prefix defines a -router-gateway, i.e. the first router on the way to the destination (next hop). +**OSPF network routing table** – includes a list of acquired routes for all +accessible networks (or aggregated area ranges) of OSPF system. "IA" flag +means that route destination is in the area to which the router is not +connected, i.e. it’s an inter-area path. In square brackets a summary metric +for all links through which a path lies to this network is specified. "via" +prefix defines a router-gateway, i.e. the first router on the way to the +destination (next hop). **OSPF router routing table** – includes a list of acquired routes to all accessible ABRs and ASBRs. **OSPF external routing table** – includes a list of acquired routes that are external to the OSPF process. "E" flag points to the external link metric type -(E1 – metric type 1, E2 – metric type 2). External link metric is printed in the -"<metric of the router which advertised the link>/<link metric>" format. +(E1 – metric type 1, E2 – metric type 2). External link metric is printed in +the "<metric of the router which advertised the link>/<link metric>" format. .. opcmd:: show ip ospf border-routers - This command displays a table of paths to area boundary and autonomous system - boundary routers. + This command displays a table of paths to area boundary and autonomous + system boundary routers. .. opcmd:: show ip ospf database @@ -577,23 +632,26 @@ external to the OSPF process. "E" flag points to the external link metric type Link ID ADV Router Age Seq# CkSum Route 172.16.0.0 10.0.34.4 1063 0x80000001 0xc40d E2 172.16.0.0/24 [0x0] -.. opcmd:: show ip ospf database <type> [A.B.C.D] [adv-router <A.B.C.D>|self-originate] +.. opcmd:: show ip ospf database <type> [A.B.C.D] + [adv-router <A.B.C.D>|self-originate] - This command displays a database contents for a specific link advertisement type. + This command displays a database contents for a specific link advertisement + type. The type can be the following: asbr-summary, external, network, nssa-external, opaque-area, opaque-as, opaque-link, router, summary. - [A.B.C.D] – link-state-id. With this specified the command displays portion of - the network environment that is being described by the advertisement. The value - entered depends on the advertisement’s LS type. It must be entered in the form - of an IP address. + [A.B.C.D] – link-state-id. With this specified the command displays portion + of the network environment that is being described by the advertisement. + The value entered depends on the advertisement’s LS type. It must be + entered in the form of an IP address. - :cfgcmd:`adv-router <A.B.C.D>` – router id, which link advertisements need to be - reviewed. + :cfgcmd:`adv-router <A.B.C.D>` – router id, which link advertisements need + to be reviewed. - :cfgcmd:`self-originate` displays only self-originated LSAs from the local router. + :cfgcmd:`self-originate` displays only self-originated LSAs from the local + router. .. code-block:: none @@ -666,6 +724,203 @@ address and the node 1 sending the default route: OSPFv3 (IPv6) ############# +General Configuration +--------------------- + +VyOS does not have a special command to start the OSPFv3 process. The OSPFv3 +process starts when the first ospf enabled interface is configured. + +.. cfgcmd:: set protocols ospfv3 area <number> interface <interface> + + This command specifies the OSPFv3 enabled interface. This command is also + used to enable the OSPF process. The area number can be specified in + decimal notation in the range from 0 to 4294967295. Or it can be specified + in dotted decimal notation similar to ip address. + +.. cfgcmd:: set protocols ospfv3 parameters router-id <rid> + + This command sets the router-ID of the OSPFv3 process. The router-ID may be + an IP address of the router, but need not be – it can be any arbitrary + 32bit number. However it MUST be unique within the entire OSPFv3 domain to + the OSPFv3 speaker – bad things will happen if multiple OSPFv3 speakers are + configured with the same router-ID! + + +Optional Configuration +---------------------- + +.. cfgcmd:: set protocols ospfv3 distance global <distance> + + This command change distance value of OSPFv3 globally. + The distance range is 1 to 255. + +.. cfgcmd:: set protocols ospfv3 distance ospfv3 + <external|inter-area|intra-area> <distance> + + This command change distance value of OSPFv3. The arguments are the + distance values for external routes, inter-area routes and intra-area + routes respectively. The distance range is 1 to 255. + + +Areas Configuration +------------------- + +.. cfgcmd:: set protocols ospfv3 area <number> range <prefix> + + This command summarizes intra area paths from specified area into one + Type-3 Inter-Area Prefix LSA announced to other areas. This command can be + used only in ABR. + +.. cfgcmd:: set protocols ospfv3 area <number> range <prefix> not-advertise + + This command instead of summarizing intra area paths filter them - i.e. + intra area paths from this range are not advertised into other areas. This + command makes sense in ABR only. + + +Interfaces Configuration +------------------------ + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 cost <number> + + This command sets link cost for the specified interface. The cost value is + set to router-LSA’s metric field and used for SPF calculation. The cost + range is 1 to 65535. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 dead-interval + <number> + + Set number of seconds for router Dead Interval timer value used for Wait + Timer and Inactivity Timer. This value must be the same for all routers + attached to a common network. The default value is 40 seconds. The + interval range is 1 to 65535. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 hello-interval + <number> + + Set number of seconds for Hello Interval timer value. Setting this value, + Hello packet will be sent every timer value seconds on the specified + interface. This value must be the same for all routers attached to a + common network. The default value is 10 seconds. The interval range is 1 + to 65535. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 mtu-ignore + + This command disables check of the MTU value in the OSPF DBD packets. + Thus, use of this command allows the OSPF adjacency to reach the FULL + state even though there is an interface MTU mismatch between two OSPF + routers. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 network <type> + + This command allows to specify the distribution type for the network + connected to this interface: + + **broadcast** – broadcast IP addresses distribution. + **point-to-point** – address distribution in point-to-point networks. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 priority <number> + + This command sets Router Priority integer value. The router with the + highest priority will be more eligible to become Designated Router. + Setting the value to 0, makes the router ineligible to become Designated + Router. The default value is 1. The interval range is 0 to 255. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 passive + + This command specifies interface as passive. Passive interface advertises + its address, but does not run the OSPF protocol (adjacencies are not formed + and hello packets are not generated). + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 retransmit-interval + <number> + + This command sets number of seconds for RxmtInterval timer value. This + value is used when retransmitting Database Description and Link State + Request packets if acknowledge was not received. The default value is 5 + seconds. The interval range is 3 to 65535. + +.. cfgcmd:: set interfaces <inttype> <intname> ipv6 ospfv3 transmit-delay + <number> + + This command sets number of seconds for InfTransDelay value. It allows to + set and adjust for each interface the delay interval before starting the + synchronizing process of the router's database with all neighbors. The + default value is 1 seconds. The interval range is 3 to 65535. + + +Redistribution Configuration +---------------------------- + +.. cfgcmd:: set protocols ospfv3 redistribute <route source> + + This command redistributes routing information from the given route source + to the OSPFv3 process. There are five modes available for route source: + bgp, connected, kernel, ripng, static. + +.. cfgcmd:: set protocols ospf redistribute <route source> route-map <name> + + This command allows to use route map to filter redistributed routes from + given route source. There are five modes available for route source: bgp, + connected, kernel, ripng, static. + + +Operational Mode Commands +------------------------- + +.. opcmd:: show ipv6 ospfv3 neighbor + + This command displays the neighbors status. + +.. opcmd:: show ipv6 ospfv3 neighbor detail + + This command displays the neighbors information in a detailed form, not + just a summary table. + +.. opcmd:: show ipv6 ospfv3 neighbor <A.B.C.D> + + This command displays the neighbors information in a detailed form for + a neighbor whose IP address is specified. + +.. opcmd:: show ipv6 ospfv3 neighbor <intname> + + This command displays the neighbors status for a neighbor on the specified + interface. + +.. opcmd:: show ipv6 ospfv3 interface [prefix]|[<intname> [prefix]] + + This command displays state and configuration of OSPF the specified + interface, or all interfaces if no interface is given. Whith the argument + :cfgcmd:`prefix` this command shows connected prefixes to advertise. + +.. opcmd:: show ipv6 ospfv3 route + + This command displays the OSPF routing table, as determined by the most + recent SPF calculation. + +.. opcmd:: show ipv6 ospfv3 border-routers + + This command displays a table of paths to area boundary and autonomous + system boundary routers. + +.. opcmd:: show ipv6 ospfv3 database + + This command displays a summary table with a database contents (LSA). + +.. opcmd:: show ipv6 ospfv3 database <type> [A.B.C.D] + [adv-router <A.B.C.D>|self-originate] + + This command displays a database contents for a specific link + advertisement type. + +.. opcmd:: show ipv6 ospfv3 redistribute + + This command displays external information redistributed into OSPFv3 + + +Configuration Example +--------------------- + A typical configuration using 2 nodes. **Node 1:** @@ -692,9 +947,9 @@ A typical configuration using 2 nodes. show ipv6 ospfv3 redistribute -.. note:: You cannot easily redistribute IPv6 routes via OSPFv3 on a WireGuard - interface link. This requires you to configure link-local addresses manually - on the WireGuard interfaces, see :vytask:`T1483`. +.. note:: You cannot easily redistribute IPv6 routes via OSPFv3 on a + WireGuard interface link. This requires you to configure link-local + addresses manually on the WireGuard interfaces, see :vytask:`T1483`. Example configuration for WireGuard interfaces: @@ -739,4 +994,4 @@ Example configuration for WireGuard interfaces: vyos@ospf02# run sh ipv6 ospfv3 neighbor Neighbor ID Pri DeadTime State/IfState Duration I/F[State] 192.168.0.1 1 00:00:39 Full/PointToPoint 00:19:44 wg01[PointToPoint] - + |