cisco ccna voice

cisco ccna voice

Network 1.1.1.1 0.0.0.0 area 0 Route-map test permit 10 router isis !! Primary tunnel LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL Type escape sequence to abort. Tracing the route to 6.6.6.6 Net 49.0001.0000.0000.0004.00 *Aug 18 09:06:02.699: min unit=0 bytes, max pkt size=2147483647 bytes AutoRoute only affects the head end of the TE tunnel. Other routers do not know the existence of the TE tunnel and will not affect their routing. 10.1.12.2 Note CISCO IOS in, LDP will not BGP in IPv4 prefix bundled label. Tunnel priority 6B is systemID + 1B of PSN ID Next Hop Tun Sender: 1.1.1.1 LSP ID: 521 Fa0/0 Let's take a look, why is it exposed to network information? Suppose A below router E , E made to be a packet to D under F. , The data packet is A tag the transferred B ,cisco ccna voice, assumed that the BC loop appears between subsequent label TTL is decremented to 0 , since the TTL value The setting is very small, so very quickly, the TTL is decremented to 0. At this time, B (message discarder) will send an ICMP error message back to E. Then, if B has E route (or label), B will The ICMP error message will be sent directly back to E. If not, B will continue to tag the error message and gradually pass it to D , D.As the PE , about E route, then back to the label and then loaded on E . Then, no matter what the situation, the final E can receive the ICMP error message generated by B.