[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] T OSPF LSA options field tables bridges 2nd EIGRP topological 2nd neighbor EIGRP, troubleshooting neighbor tables neighbors OSPF (Open Shortest Path First) route ICMP Destination Unreachable message Network column Next Hop column recursive lookups 2nd 3rd 4th 5th routing processes 2nd static, see static routing routing lookups, see lookups topology EIGRP 2nd 3rd 4th tables neighbors IS-IS 2nd tagging route maps 2nd 3rd 4th 5th 6th tagging routes RIPv2 (Routing Information Protocol Version 2) tags OSPF autonomous system external LSAs TCP (Transmission Control Protocol) 2nd access list 2nd 3rd 4th TCP/IP (Transmission Control Protocol/Internet Protocol) application layer ARP (Address Resolution Protocol) 2nd 3rd 4th 5th 6th 7th gratuitous ARP 2nd proxy ARP 2nd 3rd 4th reverse ARP 2nd data link layer 2nd host-to-host layer 2nd 3rd TCP 2nd UDP (User Datagram Protocol) ICMP (Internet Control Message Protocol) 2nd 3rd Echo Reply Echo Request redirect 2nd 3rd Router Discovery Protocol internet layer IP, see IP physical layer time convergence Time to Live, see TTL timeout RIP (Routing Information Protocol) timers administrative distances redistribution 2nd dynamic routing protocols hold-down 2nd IGRP (Interior Gateway Routing Protocol) 2nd 3rd 4th multicast flow OSPF (Open Shortest Path First) OSPF neighbors (Open Shortest Path First) RIP (Routing Information Protocol) 2nd 3rd 4th timers active-time command 2nd timers lsa- group -pacing command timestamp (IP packets) TLVs EIGRP packets (Enhanced Interior Gateway Routing Protocol) 2nd 3rd IP-specific 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th topological tables EIGRP (Enhanced Interior Gateway Routing Protocol) 2nd topology table EIGRP (Enhanced Interior Gateway Routing Protocol) 2nd 3rd 4th TOS (type of service) (Type of Service) IP packets 2nd policy routing 2nd 3rd Policy routing router LSAs OSPF 2nd tos variable extended IP access lists total length IP packets totally stub areas OSPF (Open Shortest Path First) totally stubby areas OSPF (Open Shortest Path First) 2nd trace command tracing failed static routes 2nd 3rd 4th 5th 6th 7th traffic OSPF areas 2nd policy routing 2nd traffic filters (access lists) 2nd 3rd 4th traffic-share balanced command traffic-share command traffic-share min command Transit networks OSPF (Open Shortest Path First) transparent bridges LANs (local area networks) Tree database SPF algorithm triggered updates dynamic routing protocols 2nd RIP (Routing Information Protocol) 2nd troubleshooting counting-to-infinity 2nd 3rd EIGRP (Enhanced Interior Gateway Routing Protocol) 2nd 3rd neighbors 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th stuck-in-active neighbors 2nd 3rd 4th 5th 6th 7th 8th 9th IGRP (Interior Gateway Routing Protocol) 2nd intermittent failures 2nd 3rd unequal -cost load balancing 2nd 3rd 4th 5th integrated IS-IS 2nd 3rd adjacencies 2nd 3rd link-state databases 2nd 3rd 4th 5th 6th 7th NBMA networks 2nd 3rd 4th 5th 6th 7th 8th LANs bridges 2nd 3rd 4th 5th 6th repeaters 2nd scalability 2nd WAN comparisons 2nd OSPF (Open Shortest Path First) 2nd address summarization 2nd 3rd 4th 5th 6th 7th adjacencies 2nd areas 2nd 3rd 4th 5th 6th 7th 8th 9th confgurations link-state databases 2nd neighbors performance 2nd 3rd 4th RIP (Routing Information Protocol) RIPv2 authentication versions VLSM 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th static routing protocol conflicts 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th tracing failures 2nd 3rd 4th 5th 6th 7th subnet masks 2nd 3rd TTL (Time to Live) IP packets 2nd 3rd 4th Two-Way neighbor states OSPF (Open Shortest Path First) Type of Service, see TOS types field LSAs OSPF |