08-14-2012 04:16 AM - edited 03-04-2019 05:15 PM
Hello.
We have 4 switches C3560 running EIGRP. We have PBR in one of them in this way:
interface FastEthernet0/22
no switchport
ip address 192.168.224.66 255.255.255.192
ip policy route-map wbcnvuemb16
load-interval 30
delay 50000
no snmp trap link-status
standby 214 ip 192.168.224.67
standby 214 priority 120
route-map wbcnvuemb16 permit 10
match ip address 55
set ip next-hop 192.168.1.6
access-list 55 permit 10.218.7.103
192.168.1.6 is reachable this way:
router1#show ip route 192.168.1.6
Routing entry for 192.168.1.0/29
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 210
Routing Descriptor Blocks:
* directly connected, via FastEthernet0/23
Route metric is 0, traffic share count is 1
We have conneceted a dedicated circuit in FastEthernet0/23.
The question is: ¿what would happen if circuit fails but FastEthernet0/23 remains in connected state?
192.168.1.6 will be unavailable.
PBR will maintain forwarding traffic to IP 192.168.1.6? This involve that this traffic will fail.
Regards.
Roberto.
08-14-2012 04:34 AM
Hi,
you can use this feature :http://enotepad.wordpress.com/2008/08/31/reliable-policy-based-routing/
Regards.
Alain
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08-14-2012 04:47 AM
Hello.
Thank you for the fast answer. I have read it and I also read this:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/pbroute.html
http://www.cisco.com/en/US/products/ps6599/products_white_paper09186a00800a4409.shtml#wp14035
and
http://www.cisco.com/en/US/tech/tk364/technologies_configuration_example09186a0080211f5c.shtml#veri
There are some ways to verify availability but I need to know default behavior with the configuration that I attached.
Regards.
Roberto.
08-14-2012 05:15 AM
without tracking the next hop the policy routing config is only local significant, network failures do not automatically update the routing policy configuration. so if the curcuit fails, the next hop 192.168.1.6 will still be used to recursed on the routing table.
Francisco.
08-14-2012 05:17 AM
and traffic will be blackhole.
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