Ethernet Switches & Routers

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Occasional Contributor
Posts: 7
Registered: ‎02-16-2010

Virtual Ethernet Mac Address

My problem is that router have same MAC address  on diffent virtual-router interfaces, which will prevent my switches from routing correctly. I'm using a FastIron Edge x624HF Premium router. I can post the config information if needed.

Occasional Contributor
Posts: 7
Registered: ‎02-16-2010

Re: Virtual Ethernet Mac Address

I get the same mac address for my normal ethernet interfaces also, 0012.f2aa.0180. every interface has that mac address. I'm running Flash Version 05.1.00bT3e3 (SXR05100..bin) and my bootroom code is Version 05.1.00T3e5. Was this issue addresed in other flashes or bootrom code? Am I missing something completely?

Frequent Contributor
Posts: 155
Registered: ‎09-07-2010

Re: Virtual Ethernet Mac Address

You can't really assign a static MAC address to a VE interface so this doesnt make sense .

Can you please grab a show version and a show mac output from the switch and also on the ve interface ? Let me see what i can find .

thanks-

Frequent Contributor
Posts: 155
Registered: ‎09-07-2010

Re: Virtual Ethernet Mac Address

Actually it seems like this is how it is suppose to work . The mgmt , ve interfaces are tied to the mac on the physical interface . I can see the same on one of our FI boxes .

Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name
1/1/1 Up Forward Full 1G None Yes N/A 0 748e.f8cf.6b5a icl
1/1/2 Up Forward Full 1G None Yes N/A 0 748e.f8cf.6b5a
1/1/3 Down None None None None No 1 0 748e.f8cf.6b5c
1/1/4 Down None None None None No 1 0 748e.f8cf.6b5d
1/1/5 Down None None None None No 1 0 748e.f8cf.6b5e

1/3/8 ERR-DIS None None None None No 1 0 748e.f8cf.6b9e
mgmt1 Up None Full 1G None No None 0 748e.f8cf.6b5a


Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name
ve10 Up N/A N/A N/A None N/A N/A N/A 748e.f8cf.6b5a
ve20 Up N/A N/A N/A None N/A N/A N/A 748e.f8cf.6b5a


The routing will happen with the ip addresses .

Contributor
Posts: 30
Registered: ‎12-13-2010

Re: Virtual Ethernet Mac Address

As qshaikh mentioned this is by design and vendor independent, almost all network systems work that way. Your switches behind the FastIron seems to be odd or very old when they get problems with this. Nowadays every switch build his Forwarding Databse (FDB) VLAN-specific to deal with one MAC in multiplte VLANs. This is a standard feature and nothing special.

Gerald

Occasional Contributor
Posts: 7
Registered: ‎02-16-2010

Re: Virtual Ethernet Mac Address

I used the router and I had no routing issues. I thought this was a concern because of misinformation from a previous network admin. Thanks for the input everyone

Frequent Contributor
Posts: 155
Registered: ‎09-07-2010

Re: Virtual Ethernet Mac Address

Glad to help

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