Routing

Hi All, Is it safe to imagine MPLS is needed with BGP for VRF tags to be carried over from PE routers? I am studying for my CCIE and my impression was the VRF tags are carried in BGP but now I understand I didn't have it right. You can't run VRF wi...

Hi, I have two 1941 routers in network. I have two different ISPs. Each router is running BGP with ISP router. (scenario is attached below). As shown in scenario, i want ISP A as primary. My all traffic should route from ISP A. But whenever ISP A fai...

Feature of OSPF is : it has unlimited hop count, upto how many hops a packet will traverse and what does unlimited means?

Hi, I´ve two Datacenters which have in the future a backup Connection with an L2TPv3 over ipsec. The tunnels are up and running an I can make Connections over it. But I want to connect on both sides a switch which blocked the Connection via STP. So ...

Hello all. I was labbing up an upcoming project...and found that I can not get a simple tunnel to come up between 2 7200 series routers. I've triple checked everything..re-wrote the config. There is no debug info either (debug crypto isakmp )...so it...

Hello,I have few OSPF questions regarding ABR.Which are OSPF ABR functions:- flooding Summary LSAs to connected areas?- flooding ASBR Summary LSAs to connected areas?- flooding NSSA External LSAs to Area 0?- performing summarization on routes headed ...

Hi, I' m sorry if i wrong write this topic in here. I have problem with my Modem(support router) and Router. 1. How to use my second router (RT-AC5300) as Primary Router 2. How my make my network is LAN-LAN 3. My DDNS Service can not work (error log:...

Hope all of you are doing well. My ISP (Google Fiber) has the internet coming in on VLAN2 (I am bypassing there NetworkBOX) and for some reason the routing wont work. On my router I can ping google.com and 8.8.8.8 but on my switch I cant. The PC conn...

Hello,Here is an issue that has me stumped...any insight would be very helpful.For no apparent reason, two of our corporate campus locations started experiencing intermitttent issues with multiple applications.  These two locations use an MTU of 4470...

As far as I know BGP by default took address of outgoing interface for a neighbor as update source. If we need to configure 2 router to establish neighborship with one another using loopback interface then we need to add an extra command "neighbor x....

Hi Can you please recommend two Cisco routers for 100Mb & 200 Mb links. There won't be any VPN but planning to run BGP for a small-medium enterprise. Thanks

Hi everyone, I work for a small ISP that is about to enter into the world of public peering for the first time. We are currently looking for best practices on bgp ingress filtering when connecting to a public peer at an IX. Are there any recommendati...

Curently my setup is simple. Cab 1 = primary 3750G switch Cab 2 = stacked 3750G switch If I get a quick replacement 3750 for the stacked switch in cab 6, would that one be a simple swap (just re-cabling) or require re-configuration? It’s stacked, k...