[c-nsp] strange ipv6 problems on 3550 SVI

Mohacsi Janos mohacsi at niif.hu
Fri Mar 19 04:16:11 EDT 2010




On Thu, 18 Mar 2010, Anton Kapela wrote:

>
> On Mar 18, 2010, at 4:52 PM, Stephen Cobb wrote:
>
>> Check out the "top of rack switch recommendations" thread that started a couple days back. IPv6 has parity with v4 in 12.2(50)-ish IOS, even on the 3550's, so people are claiming. This might help.
>>
>> http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_bulletin_c25_542214_ps6553_Products_Bulletin.html
>
> Cisco's been known to have incorrect data in cisco.com/go/fn (which is what checked previously), but when I read the URL you provided, I get the sense that they're referring to ME3400, not cat3550....
>
> In checking cisco.com/go/fn, I see that for me3400 12.2(50)SE does indeed provide base IPv6 features:
>
> IPv6 Default Router Preference
> IPv6 Neighbor Discovery
> IPv6 Neighbor Discovery Throttling
> IPv6 Routing - EIGRP Support
> IPv6 Routing: OSPF for IPv6 (OSPFv3)
> IPv6 Routing: RIP for IPv6 (RIPng)
> IPv6 Routing: Static Routing
> IPv6 Routing: Unicast Routing
> IPv6 Switching: CEF/dCEF Support
>
> However, 3550 only shows "IPv4/IPv6 Dual Stack -- IPv4 and IPv6 Dual Stack is to support coexistence of IPv4 and IPv6 networks" for any versions (44,46,etc).
>
> It's entirely possible that /go/fn is just way way way wrong, and that 
> (50)SE on 3550 does have fully-working v6, but all appearances and 
> experiences so far seem to indicate it doesn't (despite my desire for 
> it!). If someone's got *working* unicast v6 and protocols on their 3550, 
> please send the list a heads up!


Feature Navigator is wrong - as usual. 3550 does not have hw support for 
IPv6, therefore no support for it. No plan, according to BU (have this 
info via our account manager), to support 
IPv6 on these switches. Go for 3560 or 3750....


Best Regards,
 		Janos Mohacsi


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