Hi,
I'm working with the following scenario.
msfc1 msfc2
ip -10.1.1.1 ip 10.1.1.2
DECnet - 1.1 DECnet 1.2
| HSRP - 10.1.1.3 |
| |
---------------------------------
| |
IP hosts DECnet hosts
I'm putting together a design using 2 6509s each with MSFCs. I want to
provide IP redundancy via HSRP, but also run DECnet on both VLAN interfaces.
The virtual MAC address problem of HSRP interacting with DECnet can be
solved using 'standby use-bia' command. However I would prefer not to rely
on the 'gratuitous arp' solution for my IP hosts; I dont know if they are
all compliant.
A better solution for a normal router is to use sub interfaces and the scope
command, say a 2620. That way, I could configure IP on one sub-interface,
and DECnet on another sub-interface. This would mean DECnet hosts could talk
happily to their DR using the DEC aa-00-04-00-xx-xx MAC address, while the
IP hosts could talk to the Cisco OUI virtual mac address - ie HSRP would
only be configured on one of the subinterfaces
eg:
int fa0.1
ip addr 10.1.1.1 255.255.255.0
standby 1 ip 10.1.1.3 pre
int fa0.2
decnet cost 10
But I dont see how I can do this trick with an MSFC. You cant split a VLAN
interface into sub-interfaces.
So how do I make a VLAN interface talk DECnet with aa-00-04 MAC address, and
also respond to the normal HSRP cisco MAC address.
Any ideas ? I really dont want to rely on gratuitous ARP. I'm sure that
anything you can do with a 2620, you should be able to to at least as good
with 6500s and MSFC !!
Thanks in advance
Mark
Message Posted at:
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