Sry guys, did not hit "reply to all" ---------- Forwarded message ---------- From: E One <[email protected]> Date: Fri, Feb 18, 2011 at 1:43 PM Subject: Re: [OSL | CCIE_RS] ASR1002 - Flex link possible? To: Matt Hill <[email protected]>
Hello Matt, Thx for fast response! ASR1002 will be running 3 interfaces: WAN GiEthernet into MPLS cloud and 2xGiEthernet interfaces facing customer's L2 switches. I cannot create bundle of them because they will be terminating on 2 different switches. Yeah, I suggested to use L3 ports and use primary/backup scenario but L3 and IGP solution was denied. Therefore I tried to find if Flex link featute which is available on c7600 router would be possible here, but did not find anything. Customer asked not tu run spanning tree if possible. Therefore not sure if IRB is the option, but saw that there is something like spanning tree disable command possible under bridge group. My solution was to use backup interface cmd - not sure how it will work ( tried just on dynamips whcih did not work). Customer is expecting rapid failover so dunno about IRB and legacy spanning tree version. Also not sure - backup interface is tracking just up/up state, maybe something like ip tracking would be possible with this? Please see topology in attachment. THX again Matt. Really appreciate! ! interface FastEthernet0/0 backup interface FastEthernet0/1 ip address 2.2.2.2 255.0.0.0 speed 100 full-duplex bridge-group 1******this is from IRB try ! interface FastEthernet0/1 ip address 2.2.2.2 255.0.0.0 speed 100 full-duplex bridge-group 1***this is from IRB try ! ! interface BVI1 ip address 10.10.10.10 255.255.255.0 ! ! bridge irb ! ! bridge 1 protocol ieee bridge 1 route ip ! On Fri, Feb 18, 2011 at 1:12 PM, Matt Hill <[email protected]> wrote: > What are you trying to do? > > Essentially bundle two links together? > > We have a similar issue with these boxes. We are going to try using > L3 and just use an IGP to load balance that way. We have NFI if it > will work (well enough at least, as what Cisco says and what happens > in the SP/production environment are often rather different) because > we havent tested it yet. The concern we have revolves around QoS and > traffic handling. > > Or if you are happy with one link up and one down (like a Flex link > is) you could always make both links L3 and have a floating static > route pointing to the "backup" interface with a higher admin > distance... > > Remember Flex Links are an L2 term and an ASR is a router, not a switch. > > Cheers, > Matt > > CCIE #22386 > CCSI #31207 > > On 18 February 2011 19:18, E One <[email protected]> wrote: > > Hello guys, > > > > I am trying to find out if there is something like Flex link feature > > possible on Cisco ASR1002 router. I know that on switches and c7600 > series > > router it is possible but unfortunatelly did not find anything for > > > > ASR1002. Woul like to avoid usage of IRB and spanning tree on two LAN > > interfaces. Any hints? > > > > Let me know your opinion guys. > > > > Thanks. > > > > Peter > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > >
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