Re: Cisco Gateway Software

[Andrew Rutherford <>]

At 3:21 PM -0500 23/3/04, Alan Crosswell wrote:

> > What version of IOS are people running on their Cisco SIP gateways?  We're
> > running IOS (tm) C2600 Software (C2600-J1S3-M), Version 12.2(11)T,  RELEASE
> > SOFTWARE (fc1) .  We've recently started having problems with our 
> > gateway crashing and suspect that it's time to upgrade!

That depends what you're doing with accounting. :-)

In general, 12.2(11)T is good because it brought in a lot of voice 
code from other streams that made things a lot more stable, although 
some of this is more relevant to SIP than H.323.

There's a nasty bug in 12.2(11)T where if you have the extended 
accounting turned on (which we like because it gives you QoS stats 
like packets dropped, jitter, etc, at the end of a call) it triggers 
an IOS bug relating to Radius packets over 1500 bytes in size, which 
leads to the router reloading usually between 30 to 60 seconds later.

That problem was fixed in 12.2(11)T2, but that introduced a new bug 
(for E1 PRI's, don't know if it exists in T1 PRI's) that caused 
ring-tone not to be generated for incoming calls. Your mileage here 
depends on your ISDN provider, depending on if they trust your 
ring-tone generation. If they don't, you won't have a problem. :-)

We recommend 12.2(13)T1 or higher, with the latest 12.2(15)T being preferable.

(We're running an engineering release based off 12.3(7)T in the 
AS5350 in our office that works around a problem where NAT turned on 
in a Group-Async interface triggers a CEF bug that causes voice 
looped through the PRI (ie, inbound call diverted to mobile) to 
suffer 95% packet loss inside the router.)



Just in case people are interested in the QoS stuff (we find it 
useful for call hop-off), this is what it looks like. You get two 
records, one for the VoIP leg and one for the POTS leg. The VoIP leg 
has the QoS information, and the POTS leg has the "charged-units=#" - 
hopefully your service provider feeds this back to your gateways so 
you can provide accurate live billing reports even for destinations 
you have no prior knowledge of cost for, again useful for recharging 
call hop-off to peer organisations.

!
aaa accounting connection h323 start-stop group RADIUS
aaa nas port voip
radius-server vsa send accounting
!
gw-accounting aaa
 method voip
 acct-template callhistory-detail
!

Wed Mar 24 09:59:12 2004  203.32.153.130:1646 (4/62)
        NAS-IP-Address = 203.32.153.130
        Service-Type = Login
        Called-Station-ID = "0884254970"
        Calling-Station-ID = "0884252255"
        Acct-Status-Type = Stop
        Acct-Delay-Time = 0
        Acct-Input-Octets = 305961
        Acct-Output-Octets = 248661
        Acct-Session-ID = "00000AC9"
        Acct-Session-Time = 40
        Acct-Input-Packets = 1953
        Acct-Output-Packets = 1057
        Cisco-AVpair = 
""
        Cisco-AVpair = "iphop=count:2"
        Cisco-AVpair = "iphop=hop1:sip.voip.iagu.net"
        Cisco-AVpair = "iphop=hop2:203.32.153.138"
        Cisco-AVpair = "h323-incoming-conf-id=9AB554BB 7C5811D8 
8614F89B 26523E7
7"
        Cisco-AVpair = "subscriber=Unknown"
        Cisco-AVpair = "session-protocol=sipv2"
        Cisco-AVpair = "gw-rxd-cdn=ton:0,npi:0,#:0884254970"
        Cisco-AVpair = "release-source=2"
        Cisco-AVpair = "remote-media-address=203.32.153.138"
        Cisco-AVpair = "gw-rxd-cgn=ton:0,npi:0,pi:0,si:1,#:0884252255"
        Cisco-AVpair = "charged-units=0"
        Cisco-AVpair = "disconnect-text=normal call clearing (16)"
        Cisco-AVpair = "peer-address=0884252255"
        Cisco-AVpair = "info-type=speech"
        Cisco-AVpair = "peer-id=200"
        Cisco-AVpair = "peer-if-index=95"
        Cisco-AVpair = "logical-if-index=0"
        Cisco-AVpair = "codec-bytes=240"
        Cisco-AVpair = "coder-type-rate=g711alaw"
        Cisco-AVpair = "ontime-rv-playout=20000"
        Cisco-AVpair = "remote-udp-port=5060"
        Cisco-AVpair = "remote-media-udp-port=23718"
        Cisco-AVpair = "vad-enable=enable"
        Cisco-AVpair = "receive-delay=65 ms"
        Cisco-AVpair = "round-trip-delay=0 ms"
        Cisco-AVpair = "hiwater-playout-delay=120 ms"
        Cisco-AVpair = "lowater-playout-delay=60 ms"
        Cisco-AVpair = "gapfill-with-interpolation=12025 ms"
        Cisco-AVpair = "gapfill-with-prediction=0 ms"
        Cisco-AVpair = "gapfill-with-redundancy=0 ms"
        Cisco-AVpair = "gapfill-with-silence=0 ms"
        Cisco-AVpair = "early-packets=2"
        Cisco-AVpair = "late-packets=0"
        Cisco-AVpair = "lost-packets=0"
        Cisco-H323-Remote-Address = "h323-remote-address=203.32.153.129"
        Cisco-H323-Conf-ID = "h323-conf-id=9AB554BB 7C5811D8 8614F89B 
26523E77"
        Cisco-H323-Setup-Time = "h323-setup-time=09:58:20.201 ACDT 
Wed Mar 24 2004"
        Cisco-H323-Call-Origin = "h323-call-origin=answer"
        Cisco-H323-Call-Type = "h323-call-type=VoIP"
        Cisco-H323-Connect-Time = "h323-connect-time=09:58:32.237 
ACDT Wed Mar 24 2004"
        Cisco-H323-Disconnect-Time = 
"h323-disconnect-time=09:59:12.465 ACDT Wed Mar 24 2004"
        Cisco-H323-Disconnect-Cause = "h323-disconnect-cause=10"
        Cisco-H323-Voice-Quality = "h323-voice-quality=16"
        Cisco-H323-GW-ID = "h323-gw-id=gw.voip.off.iagu.net"

Wed Mar 24 09:59:12 2004  203.32.153.130:1646 (4/63)
        User-Name = "0884252255"
        NAS-IP-Address = 203.32.153.130
        NAS-Port = 10
        Service-Type = Login
        Called-Station-ID = "0884254970"
        Calling-Station-ID = "0884252255"
        Acct-Status-Type = Stop
        Acct-Delay-Time = 0
        Acct-Input-Octets = 248661
        Acct-Output-Octets = 305961
        Acct-Session-ID = "00000ACB"
        Acct-Session-Time = 40
        Acct-Input-Packets = 1057
        Acct-Output-Packets = 1953
        NAS-Port-Type = Async
        Cisco-AVpair = "h323-incoming-conf-id=9AB554BB 7C5811D8 
8614F89B 26523E77"
        Cisco-AVpair = "subscriber=Unknown"
        Cisco-AVpair = "out-intrfc-desc=--- Optus %2b618842522.. Service ---"
        Cisco-AVpair = "gw-rxd-cdn=ton:0,npi:0,#:0884254970"
        Cisco-AVpair = "h323-ivr-out=Tariff:Unknown"
        Cisco-AVpair = "release-source=2"
        Cisco-AVpair = "alert-timepoint=09:58:21.633 ACDT Wed Mar 24 2004"
        Cisco-AVpair = "gw-rxd-cgn=ton:0,npi:0,pi:0,si:1,#:0884252255"
        Cisco-AVpair = "gw-final-xlated-cdn=ton:0,npi:0,#:0884254970"
        Cisco-AVpair = 
"gw-final-xlated-cgn=ton:0,npi:0,pi:0,si:1,#:0884252255"
        Cisco-AVpair = "charged-units=0"
        Cisco-AVpair = "disconnect-text=normal call clearing (16)"
        Cisco-AVpair = "peer-address=0884254970"
        Cisco-AVpair = "info-type=speech"
        Cisco-AVpair = "peer-id=400"
        Cisco-AVpair = "peer-if-index=96"
        Cisco-AVpair = "logical-if-index=79"
        Cisco-AVpair = "acom-level=90"
        Cisco-AVpair = "coder-type-rate=g711alaw"
        Cisco-AVpair = "noise-level=4294967240"
        Cisco-AVpair = "voice-tx-duration=14000 ms"
        Cisco-AVpair = "tx-duration=49770 ms"
        Cisco-NAS-Port = "Serial3/0:10"
        Cisco-H323-Conf-ID = "h323-conf-id=9AB554BB 7C5811D8 8614F89B 
26523E77"
        Cisco-H323-Setup-Time = "h323-setup-time=09:58:20.581 ACDT 
Wed Mar 24 2004"
        Cisco-H323-Call-Origin = "h323-call-origin=originate"
        Cisco-H323-Call-Type = "h323-call-type=Telephony"
        Cisco-H323-Connect-Time = "h323-connect-time=09:58:32.233 
ACDT Wed Mar 24 2004"
        Cisco-H323-Disconnect-Time = 
"h323-disconnect-time=09:59:12.473 ACDT Wed Mar 24 2004"
        Cisco-H323-Disconnect-Cause = "h323-disconnect-cause=10"
        Cisco-H323-Voice-Quality = "h323-voice-quality=0"
        Cisco-H323-GW-ID = "h323-gw-id=gw.voip.off.iagu.net"

--
Andrew Rutherford      
sip:
      244 Pirie Street
Iagu Networks          tel:+61-8-8425-2255       Adelaide SA 5000
http://www.iagu.net/   
mailto:
   Australia