08-29-2007 08:21 AM - edited 03-05-2019 06:10 PM
I have a 3750G-24-TS running 12.2(25) code and I'm trying to get some policy based routing working.
I have my ACL in place for the IP addresses I want to redirect, as well as the route-map created.
I'm seeing this error when I attempt to apply the "ip policy route-map <match-tag>" to the VLAN interface:
"PLATFORM_PBR","3","UNSUPPORTED_RMAP","Route-map <match-tag> not supported for Policy-Based Routing"
Under the release notes for the version of code I'm running I see this:
Routing
These are the routing limitations:
(Catalyst 3750 or 3560 switches and Cisco EtherSwitch service modules) A route map that has an ACL with a Differentiated Services Code Point (DSCP) clause cannot be applied to a Layer 3 interface. The switch rejects this configuration and displays a message that the route map is unsupported. There is no workaround. (CSCea52915)
Does this mean that this version of code will not work?
08-29-2007 08:36 AM
Hi Friend,
What is not supported is the use of "dscp" in the ACL that is used as the match clause in the route-map. Can you confirm if your ACLS have DSCP keyword.
If yes then its a hardware limitation and not a software limitation so this will not be supported.
HTH
Ankur
*Pls rate all helpfull post
08-29-2007 08:39 AM
Unfortunately it's a hardware limitation and there's no workaround available. You may be able to deal with this situation by changing the configuration to not use DSCP.
CSCea52915 Bug Details
PBR: ACL with DSCP in route-map does not function
Symptom:
If the user tries to apply a route map which includes ACL matching DSCP
to a L3 interface on the Cat3750, the command will be rejected with an
error message indicating that the route map is unsupported.
Workaround:
This is a hardware limitation. There is no workaround.
HTH
Sundar
08-29-2007 09:52 AM
thanks for the replies.
here is my route-map:
route-map central permit 10
match ip address 140
set metric 150
set ip next-hop 10.18.64.2
this is the ACL in question:
access-list 140 permit ip 10.18.64.0 0.0.15.255 any
I haven't set any DSCP values.
When I try to apply this command to the Vlan interface, (ip policy route-map central), it doesn't take and those errors show up.
the metric for this route-map falls between my EIGRP tables and the default gateway for the device.
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