WAN Link Sizing

[colossus1611]

Hi Team,

I am after some suggestions on tool that can help with reviewing an exisitng WAN link setup. Netflow is something I can look into, but I am open to suggestions.

Customer has a branch site with approx 80 computers and 2 VC Units. They are heavy users of AV media on a daily basis and regularly use SfB and other web-based V platforms such as WebEx. They have been complaining of poor performance especially when using WebEx.

The current WAN link size is 20Mbps and I need to review of this needs upgrading. What tool can give me the best possible review to decide whether or not the WAN link size needs upgrading?

Thanks.

[balaji.bandi]

If the device support Netflow is the best to start with.

if you can let is know the device model and IOS code running on it. should also helpfull.

is this also handle IPSEC ? or just WAN router ?

[colossus1611]

Hello,

I see no IPSec or DMVPN tunnels although some configuration exists, but doesn't look like it has been completed. See no output when I run show crypot ipsec sa and show dmvpn ipv4 for all vrfs.

It's a C881-K9 Router. The IOS it is running is c800-universalk9-mz.SPA.157-3.M4a.bin.

[balaji.bandi]

Sure netflow is good to start.

[colossus1611]

Alright, will just use the tried and tested Netflow then. Thanks.