Re: Netscreen 100, Alteon Aceswitch 180, Cisco switch

From: Julio Arruda (jarruda_at_removethisnortelnetworks.com)
Date: 05/08/03 

Date: Thu, 08 May 2003 09:14:24 -0400

Remarks "inline"....

Mag wrote:

> Netscreen 100, Alteon Aceswitch 180, Cisco switch
>
> Netscreen and Alteon are on the same network.
>
> FW
> |
> ---------------
> | | |
> Alteon Web1 Web2
>

The "----" is the cisco switch I guess ?
In port 0/3 and 0/5 you happen to have the FW and the Alteon ?

> The Alteon is load balancing the traffic for the web servers. The web
> servers think they are only talking to the Alteon. This seems to be
> working.
>
> However, my switch has been giving errors:
> May 7 21:07:26.973 EST: %RTD-1-ADDR_FLAP: FastEthernet0/3 relearning
> 12 addrs per min
> May 7 21:08:26.981 EST: %RTD-1-ADDR_FLAP: FastEthernet0/3 relearning
> 12 addrs per min
>
> I turned debugging on and got:
> May 7 21:06:22.092 EST: 0010.db05.9fd4 has moved from port Fa0/5 to
> port Fa0/3 in vlan 101
> May 7 21:06:26.202 EST: Add address 0010.db05.9fd4, on port Fa0/5
> vlan 101
> May 7 21:06:26.202 EST: 0010.db05.9fd4 has moved from port Fa0/3 to
> port Fa0/5 in vlan 101
> May 7 21:06:26.236 EST: Add address 0010.db05.9fd4, on port Fa0/3
> vlan 101
>
> That is the MAC for the trusted interface of the firewall. Why is it
> bouncing between ports? Did I misconfigure the firewall or the load
> balancer?
I would guess that is a "submac problem"..
By default, "submac" is disabled in the alteon.
If you enable it (in /c/slb/real x/submac ena), the Alteon will replace
the sender MAC address by its own..

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