[c-nsp] Clearing CEF entry (routing loop)

[Erdem Sener]

Hi,

 On some releases, 'cle cef table ipv4' might do the trick.

HTH
Erdem

On 10/27/05, Ihsan Junaidi Ibrahim <ihsan at synthexp.net> wrote:
> Hi all,
>
> A routing loop has occurred in my network. I have 2 routers, R1 and R2 in
> which R2 is connected directly to R1 and R1 to our core network. Checking
> my routing table in both routers, the prefix is being forwarded to transit
> provider T1 however the CEF entry is pointing to another router, R3
> connected to another transit provider T2. My CEF entry at R1 is pointing
> to R2 as the next hop however at R2, the next hop entry is pointing to R1
> because R3 is accessible only via R1. So the packets are stuck in a
> perpetual loop.
>
> I did try variations of clear ip cef commands such as
> "clear ip cef xxx.xxx.xxx.xxx/18 prefix-statistics"
> "clear ip cef xxx.xxx.xxx.xxx 255.255.192.0 prefix-statistics"
>
> but still no avail. The CEF entry for that particular route still points
> to R3.
>
> --
> Thank you for your time,
> Ihsan Junaidi Ibrahim
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