We have two data centers, and 20 remote sites in MPLS clould via BGP. Currently the router in primary data center injects a default route into all remote MPLS routers via default originate under its BGP process (i.e- neighbor x.x.x.x default-originate). Here is what I like to implement. 1) If the MPLS router in the primary data center is down, I want to have the default route to the MPLS router at secondary data center? My issue is if both MPLS routers in both data centers would advertise their default routes to the MPLS cloud if they both are configure as default-originate. Any thought? 2) If we want to 10 remote sites to advertise the default route to Primary data center, and the other 10 sites to secondary data center, how we set this up? Any help would be greatly appreciated.  Thanks and Regards, Joe ... View more

Hello,   We configured two subnets on the switch, one is for employee, one is for student. We don't want the student student access to the employee subnet. The DHCP server is setup at employee subnet - 192.168.100.2.  We are not able to pull the IP address from the DHCP server at the VLAN20, but when we remove the "ip access-group 100 in" at VLAN 20, and it works fine. What ports should we open at the access list 100. Please advise.   Thanks, Joe   Int vlan 2 ip address 192.168.100.1 255.255.255.0 ! int vlan 20 ip address 192.168.200.1 255.255.255.0 ip access-group 100 in ip helper-address 192.168.100.2 ! access-list 100 permit udp 192.168.0.0 0.0.255.255 host 192.168.100.2 67 access-list 100 permit udp 192.168.0.0 0.0.255.255 host 192.168.100.2 68 access-list 100 deny any any ... View more

Hi we are using the profile of 10% Real time, 50/30/15/5/0 for QoS in the MPLS network, (COS1, COS2V, COS2, COS3, COS4, COS5)that means that we configure 10% for voice, 50% of remaining bandwidth for video, 30% of remaining bandwidth for critical data, and so on.     •1.       If we are in congestion in our network, and we have 15% of voice traffic (COS1), we know 10% will fallen into RT class, where the other 5% of voice traffic will go? Drops? 2.   If there is no video traffic on COS2V, which class is going to use the bandwidth of COS2V? Are the COS1, COS2, COS3, and COS4 going to share the bandwidth of COS2V? or COS1 will have highest priority than the other classes to use the available bandwidth of CoS2V?, if COS1 doesn't take it, then it will be fallen into COS2? Please advise. Thanks, Joe ... View more

Hello All- We have MPLS network via the BGP routing protocol. As you see the diagram, Site A and Site B have two links. 1. In Site A, the Link 1 is only allow 10.10.10.0/24 coming in, and 10.10.100.0/24 going out; In Site B, the Link 1 is only allow 10.10.100.0/24 coming in, and 10.10.10.0/24 going out. 2. Both Link2 to for all the traffic, expcet 10.10.10.0/24 and 10.10.100.0/24. 3. Also, we need to have reduandancy, if Link 1 fails, all the traffic should go to Link 2; If Link 2 fails, all the traffic should go to Link 1. Any thought? Regards, Joe ... View more