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diff --git a/docs/services.rst b/docs/services.rst index 599f4ddd..ff3f4249 100644 --- a/docs/services.rst +++ b/docs/services.rst @@ -793,6 +793,102 @@ ddclient_ will load the webpage at `[url]` and will try to extract an IP address for the response. ddclient_ will skip any address located before the string set in `[skip]`. +LLDP +---- + +The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol +in the Internet Protocol Suite used by network devices for advertising their +identity, capabilities, and neighbors on an IEEE 802 local area network, +principally wired Ethernet.[1] The protocol is formally referred to by the IEEE +as Station and Media Access Control Connectivity Discovery specified in +IEEE 802.1AB and IEEE 802.3-2012 section 6 clause 79. + +LLDP performs functions similar to several proprietary protocols, such as `Cisco +Discovery Protocol`_, `Foundry Discovery Protocol`_, Nortel Discovery Protocol +and Link Layer Topology Discovery. + +Information gathered +^^^^^^^^^^^^^^^^^^^^ + +Information gathered with LLDP is stored in the device as a management +information database (MIB_) and can be queried with the Simple Network +Management Protocol (SNMP_) as specified in RFC 2922. The topology of an +LLDP-enabled network can be discovered by crawling the hosts and querying this +database. Information that may be retrieved include: + +* System name and description +* Port name and description +* VLAN name +* IP management address +* System capabilities (switching, routing, etc.) +* MAC/PHY information +* MDI power +* Link aggregation + +Configuration +^^^^^^^^^^^^^ + +* Enable service with: + + :code:`set service lldp` + +Options +******* + +* Configure a Define management-address: + + :code:`set service lldp management-address <x.x.x.x>` + +* Define listening interfaces + + :code:`set service lldp interface <all|interface name>` + +* LLDPd also implements an SNMP subagent. To Enable SNMP queries of the LLDP + database: + + :code:`set service lldp snmp enable` + +* Enable optional/other protocols + + :code:`set service lldp legacy-protocols cdp` + + Supported legacy protocols: + + * ``cdp`` - Listen for CDP for Cisco routers/switches + * ``edp`` - Listen for EDP for Extreme routers/switches + * ``fdp`` - Listen for FDP for Foundry routers/switches + * ``sonmp`` - Listen for SONMP for Nortel routers/switches + + +Display neighbors +^^^^^^^^^^^^^^^^^ + +* Display with: + +``show lldp neighbors`` + +Exemple: + +.. code-block:: sh + + vyos@vyos:~# show lldp neighbors + Capability Codes: R - Router, B - Bridge, W - Wlan r - Repeater, S - Station + D - Docsis, T - Telephone, O - Other + Device ID Local Proto Cap Platform Port ID + --------- ----- ----- --- -------- ------- + swA309 eth0 LLDP ? Cisco IOS Software, GigE0/33 + + +* Options: + + * ``detail`` - Show lldp neighbors detail + * ``interface`` - Show LLDP for specified interface + +Troubleshooting +^^^^^^^^^^^^^^^ + +Use operationnal command ``show log lldp`` to display logs. + mDNS Repeater ------------- @@ -1096,6 +1192,8 @@ The resulting configuration will look like: .. _ddclient: http://sourceforge.net/p/ddclient/wiki/Home/ .. _RFC2136: https://www.ietf.org/rfc/rfc2136.txt +.. _`Cisco Discovery Protocol`: https://en.wikipedia.org/wiki/Cisco_Discovery_Protocol +.. _`Foundry Discovery Protocol`: https://en.wikipedia.org/wiki/Foundry_Discovery_Protocol .. _`Multicast DNS`: https://en.wikipedia.org/wiki/Multicast_DNS .. _SNMP: https://en.wikipedia.org/wiki/Simple_Network_Management_Protocol .. _SNMPv2: https://en.wikipedia.org/wiki/Simple_Network_Management_Protocol#Version_2 |