AS5350XM - Compatible IOS version for 'ip host ... srv' command.

[Soman Nair]

Hi Friends,

I'm having AS5350XM model of Voice Gateways in CVP8.0 environment working with ICM8.0 and CUCM8.0.

I'd like to define static hostname-to-address mappings in VG for my CVP CallServers along with command argument 'SRV' to use  all 4 CVP servers for loadbalancing and failover functionality thereby assigning priority to each call server.

I tried by using a couple of IOS version starting from 12.4(24)T4 till 15.1(3)T, but can't find a particular version which supports the argument 'srv'.

I'd appreciate if someone could suggest me an appropriate IOS version supporting 'srv' argument with 'ip host' command on AS5350XM Gateways.

Pls feel free to revert for any clarifications. Thank you.

Regards,
Soman Nair.

[geoff]

You should be able to do it.

In your dial peer you should be able to say

session target dns:callserver.sgp.foobar.com

and in your IP host table

ip host CA1.sgp.foobar.com 10.10.1.2

ip host CA2.sgp.foobar.com 10.10.1.3

ip host CA3.sgp.foobar.com 10.10.1.4

ip host CA4.sgp.foobar.com 10.10.1.5

ip host _sip._udp.callserver.sgp.foobar.com srv 1 25 5060 CA1.sgp.foobar.com

ip host _sip._udp.callserver.sgp.foobar.com srv 1 25 5060 CA2.sgp.foobar.com

ip host _sip._udp.callserver.sgp.foobar.com srv 1 25 5060 CA3.sgp.foobar.com

ip host _sip._udp.callserver.sgp.foobar.com srv 1 25 5060 CA4.sgp.foobar.com

Regards,

Geoff

[Soman Nair]

Hi Geoff,

This is exactly what I intend to go ahead with. Could you pls confirm your IOS version.

Cheers.

Rgds,

Soman.

[geoff]

That snippet was similar to something from a 3845 running 12.4(15)Tx (can't recall x), not from a 5350XM. I was just postulating.

Regards,

Geoff

[Soman Nair]

Infact, its working fine with my 2600 n 2800 series of VG fleet... but fails at our highly sophisticated and advanced AS5350XM.. Strange... I've raised a TAC case for some special release of IOS.

Apparently, also came to know that the latest release of IOS 15.x(y)T supports less number of VXML sessions as compared to its predeccesor 12.4(x)T.. so thats another dropdown.

Your help was much appreciated Geoff.

Rgds,
Som.

[geoff]

OK, I see where you are coming from. The 5350XM is a pretty different beast from the ISRs.

Regarding the drop in numbers of supported VXML ports - we see this on the 29xx and 39xx series too. My understanding is that Cisco found performance issues with those fully loaded port numbers on the older routers when the CPU was over 75%. So they would not reach those numbers reliably anyway. The new numbers can be counted on.

Regards,

Geoff

[adventurer]

I'm glad to have found this post. Perfect example of using the "ip host....srv..." command.

I have adapted it for use in pcoip purpose. Great example.