[c-nsp] PoS + Giga interfaces on 7600

[Michael Lyngbøl]

On 17.10.2005 14:28:53 +0200, Kim Onnel wrote:
> Hi,
> 
> My internet gateway(terminating transit links and BGP peering with upstream)
> is a 7609, it is currently terminating 2 OC3s and 2xT3s on FlexWans and the
> 2 Gig ports on the Sup720 are used,
> 
> Raya-7600#sh mod
> Mod Ports Card Type Model Serial No.
> --- ----- -------------------------------------- ------------------
> -----------
> 3 0 2 port adapter FlexWAN WS-X6182-2PA JAB081508NX
> 4 0 2 port adapter FlexWAN WS-X6182-2PA JAB081508QU
> 5 2 Supervisor Engine 720 (Active) WS-SUP720-BASE SAD081408YM
> 6 2 Supervisor Engine 720 (Warm) WS-SUP720-BASE SAD081502HK
> 
> i'm currently planning for next year, i'll need to do two things:
> 
> 1) Free the gig ports on the Sup to a Gig module
> 2) Add 6 more OC3 links (3 will be on the giga and 3 PoS)
> 
> So, i thought i'd get a WS-X6724-SFP (Catalyst 6500 24-port GigE Mod), this
> will satisfy my Giga needs, but i was told that 24 Giga interfaces on one
> module wont perform very well, because they are meant to be for LAN
> purposes, servers and stuff not WAN transit internet links ?
> 
> for the PoS interfaces, we currently have FlexWANs, are there any new
> modules to look at, whats the options for PoS interfaces ?

You can buy OSM modules (4/8/16 port OC3/STM-1) which will cost you.
There's also the new SIP + SPA which are just as costly.

> Any advice?

If you're able to convert your upstream links to GigE, as ethernet is
much more cheap to stick into a 6500/7600 compared to POS/ATM/...

/Michael

-- 
Michael Lyngbøl -- michael at lyngbol dot dk
Network Architect, AS3292 TDC, IP·backbone