Dear All,I have a basic problem; my remote site has unstable link so the VoIP system can't work well.Do you have any way to monitor the quality of WAN link:How to track  the paths that packets travel from source to destination? (each packet has diffe...

Dear all,I want talk BGP with ISP though 200Mb/s WAN link by using Cisco Router 2921; and in the near future WAN link will be upgraded to 1Gb/s. Does Cisco Router 2921 has enough performance to do this task?Thanks alot for your advice!

Hi everyone,I read the "Secure Multi-Tenancy" in Cisco Designs Zones. And I wonder: the number of tenancy depends on the number of VLAN that Nexus 7000 supported?Thanks alot for helping me!T.N.A

I have an ASA 5540 with AIP-SSM20. I use Gi0/0 for DMZ1 and Gi0/1 for DMZ2, then I create two virtual sensor: vs0 and Vs1. Could I use policy-map to force vs0 to protect servers in DMZ1 and vs1 to protect servers in DMZ2?Thank every one alot ! 

I have a topo like this:SpokeRouter<-->ADSL/NAT_Router<--->ADSL_Network<---->HubRouterI configure GRE tunnel between HubRouter and SpokeRouter, SpokeRouter is placed behind a ADSL/NAT Router.Before I configure GRE Tunnel, SpokeRouter and Hubrouter ca...