[c-nsp] CEF not working on policy-routed interfaces?

[Church, Chuck]

Don't you need 'ip route-cache policy' on that interface?   


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch at netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D 


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ed Ravin
Sent: Wednesday, June 01, 2005 8:14 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] CEF not working on policy-routed interfaces?

We've got a 7206 NPE-150 running IOS 12.2(15)T15.  We have a bunch of
DSL
customers coming in over ATM via auto-created interfaces, using a
template
that includes:

   ip verify unicast source reachable-via rx 2400
   ip route-cache flow
   ip mroute-cache
   ip policy route-map R1_FORCE_BACKHAUL

And the route-map:

  route-map R1_FORCE_BACKHAUL permit 10
   set ip next-hop 192.168.1.25
  !

When I look at the CEF status of the interface, though, it says CEF is
off
(see the line marked with *******):

l3dsl#show cef interface vi63
Virtual-Access63 is up (if_number 193)
  Corresponding hwidb fast_if_number 193
  Corresponding hwidb firstsw->if_number 193
  Internet address is 0.0.0.0/0
  Unnumbered interface. Using address of Loopback1 (192.168.1.42)
  ICMP redirects are always sent
  Per packet load-sharing is disabled
  IP unicast RPF check is enabled
  Inbound access list is not set
  Outbound access list is 2501
  IP policy routing is enabled
  IP policy route map is R1_FORCE_BACKHAUL
  BGP based policy accounting is disabled
  Interface is marked as point to point interface
  Hardware idb is Virtual-Access63
  Fast switching type 7, interface type 21
**IP CEF switching disabled  **********************************
  IP Feature Fast switching turbo vector
  IP Null turbo vector
  Input fast flags 0x4002, Output fast flags 0x1
  ifindex 77(77)
  Slot -1 Slot unit 63 Unit 63 VC -1
  Transmit limit accumulator 0x0 (0x0)
  IP MTU 1500

We're seeing far more CPU usage on this router than we expected - could
this be the reason?  We'd rather be using 12.3T, but as mentioned
earlier
the NPE-150 isn't supported past 12.2T.

	-- Ed
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