[c-nsp] unnumbered SVI on 6500/sup720

[Tóth András]

For the relay database, how about 'ip dhcp database' ?
http://www.cisco.com/en/US/docs/ios/12_3/ipaddr/command/reference/ip1_i1g.html#wp1080731

The DHCP relay agent can save route information to the same database
agents to ensure recovery after reloads.

Andras


On Wed, Apr 27, 2011 at 2:49 PM, Phil Mayers <p.mayers at imperial.ac.uk> wrote:
> On 27/04/11 13:21, Tim Durack wrote:
>>
>> This works: "ip route vrf PROD 155.198.60.248 255.255.255.255 vl600
>> 155.198.60.248"
>>
>> I've used this in the lab to export "host routes" from a VRF.
>
> Ah, thanks.
>
>>
>> I messed with the unnumbered VLAN scenario. Didn't really like the
>> DHCP dependency though, especially as a router reload will then cause
>> significant problems.
>>
>
> Yeah. I'm not comfortable with that myself. Unlike the DHCP snooping
> database (which is backed up) there's no "relay database".
>
> It's also not clear to me if, or how, the unnumbered VLAN stuff would work
> with a FHRP (HSRP, VRRP, etc.). I don't think it would - because no HSRP
> hellos are emitted on the unnumbered SVI, the layer2 entries wouldn't update
> on a failover :o(
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