Tracking interface for Policy route
Hi ,
Pls have a llok at my scenario and below are the brief about the topology.
R1 : L3 Switch and IP routing enabled
Aswitch : L2 switch
VLAN 13PC : it is a PC connected to 13 vlan in R1 core switch
VLAN40PC2 : connected to L2 switch in 40th VLAN
VLAN40PC2 default gateway is 192.168.40.1 , which is 40th vlan ip in Core-Switch(in R1)
VLAN13PC default gateway is 192.168.13.1, which is 13th vlan ip in Core-Switch(in R1)
R1(Core-Sw) and Aswitch both are connected and it is TRUNK Link
Communication between VLAN40PC2 and VLAN13PC is happening over Trunk link..
My requirement :
When the connectivity (trunk link) between R1(core-Sw) and Aswitch(L2) fails ,
VLAN13PC should be reachable over R1-> R7 -> R8 -> Aswitch to VLAN40PC2
To Resolve the above requirement , i have done the following configurations :
1. In R1 (Core-Sw) , i have configured Policy Route for Source VLAN13PC to destination
VLAN40PC2 with set next hop as R7 f0/0 IP address
2.In R8 Router, i have configuerd SUB interfaces with 40th VLAN and 3 vlan
Result after configured above :
It is pinging from VLAN40PC2 and VLAN13PC using Policy route
But After Trunk link connectivity (trunk link) between R1(core-Sw) and Aswitch(L2) restored,
It is still using policy route only
My question is ,
Can we track Trunk interface (connectivity between R1(core-Sw) and Aswitch(L2)) and can we apply trunk interface to a VLAN 13.
So that when trunk link failes , 13 vlan pc automatically communicates to 40th vlan PC
and
when trunk link gets up with out any other configuration it has to communicate over trunk link..
Elsec-VLAN40.png
Pls have a llok at my scenario and below are the brief about the topology.
R1 : L3 Switch and IP routing enabled
Aswitch : L2 switch
VLAN 13PC : it is a PC connected to 13 vlan in R1 core switch
VLAN40PC2 : connected to L2 switch in 40th VLAN
VLAN40PC2 default gateway is 192.168.40.1 , which is 40th vlan ip in Core-Switch(in R1)
VLAN13PC default gateway is 192.168.13.1, which is 13th vlan ip in Core-Switch(in R1)
R1(Core-Sw) and Aswitch both are connected and it is TRUNK Link
Communication between VLAN40PC2 and VLAN13PC is happening over Trunk link..
My requirement :
When the connectivity (trunk link) between R1(core-Sw) and Aswitch(L2) fails ,
VLAN13PC should be reachable over R1-> R7 -> R8 -> Aswitch to VLAN40PC2
To Resolve the above requirement , i have done the following configurations :
1. In R1 (Core-Sw) , i have configured Policy Route for Source VLAN13PC to destination
VLAN40PC2 with set next hop as R7 f0/0 IP address
2.In R8 Router, i have configuerd SUB interfaces with 40th VLAN and 3 vlan
Result after configured above :
It is pinging from VLAN40PC2 and VLAN13PC using Policy route
But After Trunk link connectivity (trunk link) between R1(core-Sw) and Aswitch(L2) restored,
It is still using policy route only
My question is ,
Can we track Trunk interface (connectivity between R1(core-Sw) and Aswitch(L2)) and can we apply trunk interface to a VLAN 13.
So that when trunk link failes , 13 vlan pc automatically communicates to 40th vlan PC
and
when trunk link gets up with out any other configuration it has to communicate over trunk link..
Elsec-VLAN40.png
ASKER
Thanks for the info..
But the attachement is not helpful to my scenario..
I have L3 switch and does it supports tracking to a trunk interface.?
Pls see the topology once again and check my requirement..
Regards
Ram
But the attachement is not helpful to my scenario..
I have L3 switch and does it supports tracking to a trunk interface.?
Pls see the topology once again and check my requirement..
Regards
Ram
Without knowing what the platform and IOS version is, there is no way to answer the question of whether your switch supports object tracking.
ASKER
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M),
Pls provide information : How to track a L2 trunk link
As per your attched link, we can track L3 interface using IPSLA and i need, how to track
L2 trunk link
My requirement is
If Trunk link failes , traffic should go over Router and once Trunk link gets up , the traffic
should go via trunk link
Regards
Ramu
Pls provide information : How to track a L2 trunk link
As per your attched link, we can track L3 interface using IPSLA and i need, how to track
L2 trunk link
My requirement is
If Trunk link failes , traffic should go over Router and once Trunk link gets up , the traffic
should go via trunk link
Regards
Ramu
R1 : L3 Switch and IP routing enabled
Cisco IOS Software, 3700 Software (C3725-ADVENTERPRISEK9-M), Version 12.4(15)T5, RELEASE SOFTWARE (fc4)
Just to be clear, your version info appears to indicate that R1 is a 3725 Router.
Is R1 a router or a switch?
ASKER
IT is in GNS3 LAB called RouterSwitch
We are using L3 switch
We are using L3 switch
ASKER CERTIFIED SOLUTION
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ASKER
I would like t o inform you that Aswitch is a L2 switch not L3 switch then how can we do float static routing over core-Sw
ASKER
I have followed your attached Link of Multiple interface tracking and i would like to know
what is the difference between rtr and IP SLA
I have configured IP SLA on a cisco 3750 , L3 switch but when i do applying , it is accepting
RemoteRTR(config)#track 1 ip sla
% Invalid input detected at '^' marker.
But i can apply rtr to track ID
so What is the difference of IP SLA and RTR
Regards
Ramu
what is the difference between rtr and IP SLA
I have configured IP SLA on a cisco 3750 , L3 switch but when i do applying , it is accepting
RemoteRTR(config)#track 1 ip sla
% Invalid input detected at '^' marker.
But i can apply rtr to track ID
so What is the difference of IP SLA and RTR
Regards
Ramu
It's the same thing. At some point (around 12.3 or 12.4), Cisco changed the commands from "rtr" to "ip sla".
ASKER
Tks
How was my answer lacking?
Policy Based Routing with the Multiple Tracking Options Feature Configuration Example