TenGigabitEthernet is flapping and automatic going to err-disable status. i have chnaged the cable and the xenpack and the port, the link testing is also done. still the issuse remains the same, the port flaps and goes into err-disable. Can somebody ...

When my primary link goes down, ISDN Ospf neighbourship is going to exstart state. Rtr BL----interface Dialer1 ip address XXX XXX no ip redirects encapsulation ppp ip route-cache flow load-interval 30 dialer pool 1 dialer remote-name m dialer idle-ti...

when i login to the roter it directly taken me to the enable prompt (#). My aaa config is fine, however i have " privilege level 15" configured in my line vty 0 4, , can somebody confirm , is it because of this ? and wht is the singnificance of privi...

Hello,I want to simulate ISDN connectivity in my lab, i have arrange two BRI cards on two different routers. with what cable shall i join these to routers (from BRI card). After i connect these two router with ISDn line, will i be able to trigger ISD...

The nature of GRE tunnel is that it ping the destination in one hop. What i want to know is how does the intermidieate routers does not acknoledge the GRE packet ? Can somebody explain me this ?