[c-nsp] Re: No "ping atm" command in 12.2-xx.Sxx

[Roger Weeks]

James -

I don't know what router platform you're on, but I ran across the  
same problem.  The 12.2S train does not include ATM ping capabilities  
- specifically letting you do something like this:

#ping
Protocol [ip]: atm
ATM Interface: atm2/0.434
VPI value [0]: 4
VCI value [1]: 34
Loopback - End(0), Segment(1) [0]:
Repeat Count [5]:
Timeout [2]:
Type escape sequence to abort.
Sending 5, 53-byte end-to-end OAM echoes, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms

I agree with you that this is an amazingly useful thing to have.   
When we first started aggregating DSL on our 7206VXR I initially went  
with 12.2.25(S) on the recommendation of a colleague at another ISP.

However, I quickly discovered two problems with 12.2.25(S):

1.  No ATM-OAM ping
2.  While 12.2.25(S) allowed me to use the "range pvc" command when  
defining ATM subinterfaces for DSL customers, I quickly ran into  
several bugs.  After opening a case with Cisco, I was told that while  
12.2.25(S) has the "range pvc" command, it is NOT SUPPORTED.

Short story - I'm on 12.3T train now and am very happy with it.  It's  
been rock solid stable, no problems at all.

--
Roger J. Weeks
Systems & Network Administrator
Mendocino Community Network

> Date: Mon, 24 Oct 2005 19:09:01 -0600
> From: "james edwards" <hackerwacker at cybermesa.com>
> Subject: [c-nsp] No "ping atm" command in 12.2-xx.Sxx
> To: <cisco-nsp at puck.nether.net>
>
> I was hoping to move my DSL agg routers to 12.2S IOS but have  
> discovered
> there is no "ping atm interface pvc seg/end-loopback" utility in  
> 12.2-18 or
> 12.2-25, S train. The TAC Software Advisor is confusing on this  
> issue, it
> lists both "atm ping" and "atm oam ping" which are described as the  
> same
> thing. It lists "atm oam ping" as only available in 12.0. Searching  
> for "atm
> ping" yeilds no IOS as matched.I have used it for some time in 12.2T.
>
> This feature is a must have, it is a quickest way to prove the  
> cross connect
> is wrong on a DSL circuit or there is a layer 3 problem on any ATM  
> circuit.
> I do a lot of ATM to FR internetworking an this command is very  
> helpful in
> troubleshooting the ATM side of a circuit.  Going to 12.3 is not an  
> option.
> How would I go about getting this command included in 12.2S ?
>
> James
> Routing and Security Administrator
> At the Santa Fe Office: Cyber Mesa Telecom
> jamesh at cybermesa.com  noc at cybermesa.com
> http://www.cybermesa.com/ContactCM
> (505) 795-7101
>