Hi Dave, thanks! I tried the command and found that it works. Do you know the similar command on cisco? Regards, Song 在 2015/1/12 21:16, Dave Bell 写道:

On a Juniper, you could do something like:

show route hidden aspath-regex .*<Target-AS>.*

Regards, Dave

On 12 January 2015 at 13:05, Song Li <refresh.lsong@gmail.com> wrote:

...

Hi everyone,

I am curious about the AS loops in the AS-path. I think there should be a very, very few received BGP routes that contain the local AS#. But because such routes will be dropped and not installed in Loc-RIB, I want to know if there is a command that can display the dropped routes containing AS loops (in cisco or juniper router). Does anybody know?

Thanks!

Best!

-- Song Li Room 4-204, FIT Building, Network Security, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China Tel:( +86) 010-62446440 E-mail: refresh.lsong@gmail.com

-- Song Li Room 4-204, FIT Building, Network Security, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China Tel:( +86) 010-62446440 E-mail: refresh.lsong@gmail.com