[c-nsp] v6 vrrp

[Charles Sprickman]

> On Jul 14, 2022, at 8:34 AM, Mark Tinka <mark at tinka.africa> wrote:
> 
> 
> 
> On 7/10/22 11:56, Randy Bush wrote:
>>> The standard states that the first address in VRRP v3 IPv6 needs to be
>>> an IPv6 link-local address.
>>> https://datatracker.ietf.org/doc/html/rfc5798
>> yup.  but as saku says, both xr and junos create the link local
>> automagically.  and that is what i had in a differen pop.  so i
>> mistakenly assumed xe would do the dirty.  my error.
> 
> As we've seen many times before, IOS XE and IOS XR may, just as well, be from two very different companies.
> 
> We've hit a few issues with VRRP for IPv6, in the past, where it would simply stop working for no apparent reason, while VRRP for IPv4 is working just fine, on the same interface. In the end, a reboot of the router fixed the issue. Seems to be a hardware programming issue, that is very intermittent.
> 
> Look out for this, on the ASR1000 family.

I’m doing much less work with Cisco these last few years, and you reminded me I do have some folks with ASR-1000 series that are way, way, way overdue for some work. I have literally no idea about how the current licensing scheme works, nor the whole split/change to IOS. I think that’s all too basic for this list, but if anyone here has some pointers to resources outside of cisco’s own site that could get me up to speed a bit, I’d really appreciate it.

Thanks,

Charles

> 
> Mark.
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