H3C Technologies H3C S10500 Series Switches - Manual (Page 183)

174
To do… Use the command… Remarks
Define an ACL match criterion if-match acl acl-number
Optional
By default, no packets are
filtered.
Set the next hop and associate it
with a track entry
apply ip-address next-hop ip-address
[ direct ] [ track track-entry-number ]
[ ip-address [ direct ] [ 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] ]
Required
Configure at least one of the
commands.
NOTE:
•
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 Layer 3—IP Routing Configuration Guide.
Displaying and maintaining track entries
To do… Use the command… Remarks
Display information about the
specified or all track entries
display track { track-entry-number |
all } [ | { begin | exclude |
include } regular-expression ]
Available in any view
Track configuration examples
VRRP-track-NQA collaboration configuration example (the
master monitors the uplink)
Network requirements
• As shown in
Figure
47 , Host A needs to access Host B on the Internet. The default gateway of Host
A is 10.1.1.10/24.
• Switch A and Switch B belong to VRRP group 1, whose virtual IP address is 10.1.1.10.
• When Switch A works normally, packets from Host A to Host B are forwarded through Switch A.
When VRRP finds that a fault is on the uplink of Switch A through NQA, packets from Host A to Host
B are forwarded through Switch B.