We all know: FR-Layer 2 address - DLCIMPLS-Layer 2 address - LabelEthernet-Layer 2 address - MAC Address. What is the layer 2 address used by PPP & HDLC?

How do we decide about the bandwidth required for a new link. One site has 100 users (Data), no Voice, no Video Another site has 100 users (Data, Voice, Video) My knowledge and understanding for Voice & Video users) 60-65% concurrent users.Voice - 16...

Collapsed Core = Core+Distribution but still we have CE in collapsed core. Ref: https://www.google.co.in/imgres?imgurl=http%3A%2F%2Fwww.ciscopress.com%2Fcontent%2Fimages%2Fchap1_9781587133329%2FelementLinks%2F01fig08.jpg&imgrefurl=http%3A%2F%2Fwww.ci...

Group  Port-channel  Protocol    Ports------+-------------+-----------+-----------------------------------------------1      Po1(SU)         LACP      Gi5/1(P)   Gi5/2(P)1      Po1A(SU)        LACP      Gi4/23(P)  Gi4/24(P) can anyone explain why Po1...

Do we need to configure IGMP on Host, Switch or Router.