Regarding my second suggestion, It's certainly more complex than BVI It's used in metro aggregation rings running MPLS On ring-access boxes you can bridge the traffic from ports in bridge-domain into PWs running to ring-aggregation boxes where the PWs are terminated -on these you can bridge the PWs traffic into qinq/802.1ad/(802.1ah) trunks running to L3 boxes (PEs)
I'm also missing a virtual outgoing interface on which I could terminate the L2 PW and bridge the traffic from this virtual interface onto a L3 interface all on a single box adam -----Original Message----- From: Gert Doering [mailto:[email protected]] Sent: Monday, July 23, 2012 11:20 AM To: adam vitkovsky Cc: 'Gert Doering'; '?ukasz Bromirski'; [email protected] Subject: Re: [c-nsp] acl on bvi in ios xr (9k) 4.1.2 Hi, On Mon, Jul 23, 2012 at 10:14:10AM +0200, adam vitkovsky wrote: > >"one router, two different switches, both switches are standalone and > >have > no multi-chassis capabilities". > If there's the same VLAN running of the two switches you could > terminate it on two separate L3 sub-interfaces on the ASR9K /breaking > the VLAN subnet in two -loosing 4 addresses Which give you twice the amount of single-point-of-failure, instead of the desired goal: redundant links to the same L2 network. > Or instead of the BVI you could use a PW to aggregate the L2 traffic > form the disjoint VLAN and terminate the PW at ASR9K running L3 for > the aggregation ring I'm not sure I understand that, but it doesn't sound any simpler than a BVI... (but as long as VPLS is mentioned, it must be great) > Or you can use the already mentioned L2 switch to aggregate the VLANS > from the two switches and connect it via trunk to ASR9K There's no "single L2 switch". Which is the point of the excercise. gert -- USENET is *not* the non-clickable part of WWW! //www.muc.de/~gert/ Gert Doering - Munich, Germany [email protected] fax: +49-89-35655025 [email protected] _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
