06-23-2009 07:26 PM - edited 03-04-2019 05:13 AM
Hello ,
I came across and extract part of the configuration as below :
Both RTs may rcv incoming traffic from 137.20.159.0/24 and according to route-map rm1 ,it will forward to 113.116.22.193 via Port-channel6
I saw floating static routes in RT21 and RT22.
The Administrator was saying if the Port-channel6 of 1 RT fails , traffic from 137.20.159.0/24 can be forwarded to another RT.
I have not been able to test it, but i am doubtful if this floating static route works as required. My understanding a route-map is as good as a route statement/table entry , will the router
refer at another destination route which map the next-hop of route-map when it is not available ?
I am not sure if src 137.20.159.0/24 dest 113.116.22.192/28 works , but i believe not for src 137.20.159.0/24 to any other adresses.
Please advice and correct me if i am wrong
thanks
regards
RT21
----
interface Port-channel6
description EtherChannel6
ip address 113.116.22.198 255.255.255.240
interface Vlan13
description N1
ip address 10.208.2.67 255.255.255.240
no ip redirects
ip rip advertise 15
ip policy route-map rm1
ip ospf hello-interval 4
standby 131 ip 10.208.2.69
standby 131 preempt
standby 131 name N1-HSRP
interface Vlan23
description N2
ip address 10.208.2.83 255.255.255.240
no ip redirects
ip rip advertise 15
ip policy route-map rm1
ip ospf hello-interval 4
standby 231 ip 10.208.2.85
standby 231 priority 95
standby 231 preempt
standby 231 name N2-HSRP
!
access-list 154 permit ip 137.20.159.0 0.0.0.255 any
route-map rm1 permit 50
description matcthstc
match ip address 154
set ip next-hop 113.116.22.193
ip route 113.116.22.192 255.255.255.240 10.208.2.84 50
!
RT22
----
interface Port-channel6
description EtherChannel6
ip address 113.116.22.199 255.255.255.240
!
interface Vlan13
description N1
ip address 10.208.2.68 255.255.255.240
no ip redirects
ip rip advertise 15
ip policy route-map rm1
ip ospf hello-interval 4
standby 131 ip 10.208.2.69
standby 131 priority 95
standby 131 preempt
standby 131 name N1-HSRP
interface Vlan23
description N2
ip address 10.208.2.84 255.255.255.240
no ip redirects
ip rip advertise 15
ip policy route-map rm1
ip ospf hello-interval 4
standby 231 ip 10.208.2.85
standby 231 preempt
standby 231 name N2-HSRP
access-list 154 permit ip 137.20.159.0 0.0.0.255 any
route-map rm1 permit 50
description matchsrc
match ip address 154
set ip next-hop 113.116.22.193
!
ip route 113.116.22.192 255.255.255.240 10.208.2.67 50
06-23-2009 09:43 PM
I think if PortChannel is down:
1. VLAN HSRP will not be changed, it not trace interface state.
2. Router Map will continue send packet to 113.116.22.193, but packet will be drop, because router map not match interface state~!
06-23-2009 10:02 PM
Thanks for the response
1)I understand this part on VLAN HSRP
2)For eg. Port-channel6 of RT21 is down. traffic from 137.20.159.0/24 will still be coming in to RT21. The qn is if the floating static route helps to forward these traffic via RT22 ?
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