H3C Technologies H3C SecBlade LB Cards - Manual (Page 103)

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Configuration procedure
You can associate a nonexistent track entry with PBR. The association takes effect only after you use the
track command to create the track entry. For more information about PBR, see Network Management
Configuration Guide.
To associate Track with PBR:
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a policy or policy
node and enter PBR
policy node view.
policy-based-route policy-name [ deny | permit ] node
node-number
N/A
3. Define a match criterion.
• Define a packet length match criterion:
if-match packet-length min-len max-len
• Define an ACL match criterion:
if-match acl acl-number
Optional.
By default, no
packets are filtered.
4. Associate Track with
PBR.
• Set the outgoing interface, and associate it with a
track entry:
apply output-interface interface-type
interface-number [ track track-entry-number ]
[ interface-type interface-number [ track
track-entry-number ] ]
• Set the next hop, and associate it with a track entry:
apply ip-address next-hop ip-address [ track
track-entry-number ] [ ip-address [ track
track-entry-number ] ]
• Set the default outgoing interface, and associate it
with a track entry:
apply default output-interface interface-type
interface-number [ track track-entry-number ]
[ interface-type interface-number [ track
track-entry-number ] ]
• Set the default next hop, and associate it with a
track entry:
apply ip-address default next-hop ip-address
[ track track-entry-number] [ ip-address [ track
track-entry-number] ]
Use at least one of
the commands.
Associating Track with interface backup
Interface backup allows interfaces on a device to back up each other, with the active interface
transmitting data and the standby interfaces staying in backup state. When the active interface or the link
where the active interface resides fails, and data cannot be transmitted, a standby interface is brought
up to transmit data, enhancing the reliability of the network.
Associate a standby interface with a track entry so that the standby interface can detect the status of the
active interface by checking the status of the track entry, and change its status.
• The Positive state of the track entry shows that the link where the active interface resides works
normally, and the standby interfaces stay in backup state.