[c-nsp] 7206 L2TP and Gigawords

[Arie Vayner (avayner)]

Phil,

I have worked on this kind of an issue and we have CSCsw74470 for this
one, which is integrated in SRD3 (I made sure, and it is there).
The code to generate RADIUS gigawords is there, so this has to be
something else...

We need to identify if the problem is due to the info not being
collected (i.e. the counters for the interface are 32-bit) or we just do
not report it in RADIUS (so the info is there, and it's "just" not
reported).

Use these commands:
sh int virtual-access #

Look at the counter for a session that should be >4294967296 bytes
in/out (2^32) - Does it overlap to 0, or keep counting beyond 2^32?

Then, if the counters are >2^32 (which means we count fine, and just
have a reporting issue), use:

sh subscriber session username <username> detailed

Look for the "AAA_id", which is a HEX number, and then use it with:
sh aaa user <AAA_id> (in a 0xNNNN format).

The pre-bytes-in/out field are used by Gigawords. If the counter should
be more than 2^32, then pre-bytes-in/out should be >0.

If all is still fine, look at debug radius...


I would suggest to file a TAC case with the following findings, and
maybe reference the above DDTS.... It could be something new...

Arie

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Phil Pierotti
Sent: Sunday, June 06, 2010 05:56
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 7206 L2TP and Gigawords

Hi All,

I'm running a 7206/G1 with AdvIP Services 12.2(33)SRD3 as an LNS.

Sending periodic accounting updates every ten minutes.

Running a download test to verify the LNS is sending RADIUS Gigawords
attributes (52 and 53), backending against Freeradius.

Looking at the freeradius detail log, it's obvious that my LNS is *not*
generating Gigawords attributes.

>From two successive interim updates, I clearly see byte-counter
rollover and
no packet-counter rollover (same user, same session):

        Acct-Output-Octets = 3883719317
        Acct-Output-Packets = 2592080

        Acct-Output-Octets = 257083854
        Acct-Output-Packets = 3036810

And there's no gigawords attribute (Acct-Output-Gigawords, etc) being
generated.

According to Cisco: gigawords attributes are enabled by default (ie only
the
NO form of the command will show in the config).
I've checked my config, I'm not NO'ing that (why would you?)

So can anyone suggest why my LNS is not generating these attributes when
they're needed?

Thanks,
Phil P
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