diff options
Diffstat (limited to 'docs/_include/interface-ip.txt')
| -rw-r--r-- | docs/_include/interface-ip.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/_include/interface-ip.txt b/docs/_include/interface-ip.txt index 2c92c944..6045a7a8 100644 --- a/docs/_include/interface-ip.txt +++ b/docs/_include/interface-ip.txt @@ -1,5 +1,5 @@ .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} - {{ var5 }} {{ var6 }} ip adjust-mss <mss> + {{ var5 }} {{ var6 }} ip adjust-mss <mss | clamp-mss-to-pmtu> As Internet wide PMTU discovery rarely works, we sometimes need to clamp our TCP MSS value to a specific value. This is a field in the TCP options part of @@ -12,6 +12,9 @@ .. hint:: MSS value = MTU - 20 (IP header) - 20 (TCP header), resulting in 1452 bytes on a 1492 byte MTU. + Instead of a numberical MSS value `clamp-mss-to-pmtu` can be used to + automatically set the proper value. + .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} ip arp-cache-timeout |