diff options
| author | Bastien Roucariès <rouca@debian.org> | 2020-04-13 01:50:35 +0200 |
|---|---|---|
| committer | Stephen Hemminger <stephen@networkplumber.org> | 2020-04-20 09:45:37 -0700 |
| commit | 420febf9611d5cb4061055913041be00859210da (patch) | |
| tree | 510ce35ae2536bac527372edd0d74976b8035449 | |
| parent | 1cad8f8d78fd10d4bf86962ceb3b1e092fe9ef15 (diff) | |
| download | iproute2-420febf9611d5cb4061055913041be00859210da.tar.gz | |
Document BPDU filter option
Disabled state is also BPDU filter
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
| -rw-r--r-- | man/man8/bridge.8 | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index 584324b54..bd33635ad 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -293,32 +293,45 @@ droot port selectio algorithms. .TP .BI state " STATE " -the operation state of the port. This is primarily used by user space STP/RSTP +the operation state of the port. Except state 0 (disabled), +this is primarily used by user space STP/RSTP implementation. One may enter a lowercased port state name, or one of the numbers below. Negative inputs are ignored, and unrecognized names return an error. .B 0 -- port is DISABLED. Make this port completely inactive. +- port is in +.B DISABLED +state. Make this port completely inactive. This is also called +BPDU filter and could be used to disable STP on an untrusted port, like +a leaf virtual devices. .sp .B 1 -- STP LISTENING state. Only valid if STP is enabled on the bridge. In this +- STP +.B LISTENING +state. Only valid if STP is enabled on the bridge. In this state the port listens for STP BPDUs and drops all other traffic frames. .sp .B 2 -- STP LEARNING state. Only valid if STP is enabled on the bridge. In this +- STP +.B LEARNING +state. Only valid if STP is enabled on the bridge. In this state the port will accept traffic only for the purpose of updating MAC address tables. .sp .B 3 -- STP FORWARDING state. Port is fully active. +- STP +.B FORWARDING +state. Port is fully active. .sp .B 4 -- STP BLOCKING state. Only valid if STP is enabled on the bridge. This state +- STP +.B BLOCKING +state. Only valid if STP is enabled on the bridge. This state is used during the STP election process. In this state, port will only process STP BPDUs. .sp |