H3C Technologies H3C S6800 Series Switches - Manual (Page 30)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter Layer 2 Ethernet or
aggregate interface
view.
interface interface-type
interface-number
N/A
3. Configure the link type of
the port as trunk.
port link-type trunk The default link type of a port is access.
4. Enable EVB. evb enable By default, EVB is disabled on a port.
5. Enable TRILL to forward
traffic from EVB
S-channels.
trill evb-support
By default, TRILL does not support forwarding
traffic from EVB S-channels.
The trill evb-support command and TRILL
commands (including trill enable) are
mutually exclusive. Do not configure both EVB
and TRILL on an interface.
Configuring TRILL GR
Graceful Restart (GR) ensures the continuity of packet forwarding when a protocol restarts or an
active/standby switchover occurs on the RB. The RB advertises the restart status to its neighbors, and
allows the neighbors to re-establish connections. GR involves the following roles:
• GR restarter—Graceful restarting router. It must be GR capable.
• GR helper—A neighbor of the GR restarter. It helps the GR restarter to complete the GR process.
By default, the device acts as the GR helper. Configure TRILL GR on the target GR restarter.
To configure TRILL GR:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter TRILL view. trill N/A
3. Enable GR for TRILL. graceful-restart By default, GR is disabled for TRILL.
4. (Optional.) Configure
the GR interval for TRILL. graceful-restart interval
interval
The default setting is 300 seconds.
5. (Optional.) Suppress the
SA bit during graceful
restart.
graceful-restart suppress-sa
By default, the SA bit is set during graceful
restart.
Associating a TRILL port with a track entry
Associate a track entry with a TRILL port to fast detect the loss of connectivity to the neighbor on the port.
Track can collaborate with Connectivity Fault Detection (CFD) to monitor the link state of the neighbor.
For more information about CFD and Track, see High Availability Configuration Guide.
To use CFD to detect link failures in a TRILL network, you must configure the outward-facing MEPs. CFD
supports only single-hop detection. CFD packets cannot be forwarded by RBs.