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O<br />

Object Identifier (see OID)<br />

OID (Object Identifier)<br />

overview, 130–133<br />

remote monitoring and, 151<br />

sysUpTime object, 154<br />

online documentation<br />

CLI and, 9<br />

JUNOS software, 56<br />

Open Shortest Path First (see OSPF)<br />

OpenConfirm state (BGP), 425, 477<br />

OpenSent state (BGP), 425, 477<br />

operational mode<br />

commands in, 2, 3, 8<br />

displaying permissions needed, 93, 94<br />

functionality, 2<br />

logging out of routers, 103<br />

operator privilege class<br />

operational mode and, 82, 87<br />

overview, 90<br />

permission bits for, 92<br />

operators (regular expressions), 445, 446<br />

optional attributes (BGP), 420<br />

origin action (BGP), 291<br />

ORIGIN attribute (BGP), 420, 430<br />

ORIGINATOR_ID attribute (BGP), 422<br />

orlonger keyword, 294<br />

OSI Reference Model, 192, 349<br />

OSPF (Open Shortest Path First)<br />

adjusting link costs, 406–408<br />

authentication, 402–405<br />

changing route preferences, 274–277<br />

configuring, 384–387<br />

configuring addresses, 206<br />

configuring for IPv6, 391–393<br />

configuring multiarea network, 393–396<br />

convergence times, 409–411<br />

CSPF and, 509<br />

default routing policy actions, 286<br />

disabling, 412, 413<br />

firewall filters, 99, 313, 320, 323<br />

graceful restart, 278–280<br />

IGPs and, 333<br />

IP routing, 246, 247, 258<br />

IPSec and, 107, 118<br />

IS-IS and, 350<br />

label-switched paths and, 544–545<br />

LDP and, 492<br />

link-state databases, 372, 383, 385,<br />

390–391, 395<br />

loopback addresses, 205<br />

moving traffic off routers, 411<br />

P<br />

MPLS and, 479, 486, 503<br />

NSSAs, 399–401<br />

overview, 382–384<br />

route convergence time, 333<br />

routing policy, 284–289<br />

static routes, 405, 406<br />

“sticky” DRs, 366, 383, 387<br />

stub areas, 397–399<br />

summarizing routes, 401, 402<br />

temporarily disabling, 378<br />

tracing traffic, 179, 413–417<br />

unicast routes, 546<br />

viewing routes, 387–389<br />

VPN routing tables, 565<br />

VPNs and, 558<br />

P (provider) routers, 553, 555, 556<br />

Packet Forwarding Engine (see PFE)<br />

packet loss, fast reroute and, 528–534<br />

packet-length match term, 305<br />

packets<br />

tracing, 619–621<br />

verifying labels, 516–519<br />

partial sequence number PDUs (PSNPs), 367<br />

passwords<br />

authenticating, 80<br />

authenticating BGP peers, 451<br />

brute force attacks, 74, 99<br />

community strings and, 133, 138<br />

encrypting, 50, 74, 75, 84, 499<br />

hiding, 404<br />

IS-IS authentication, 367, 368<br />

login accounts and, 82, 83<br />

NTP authentication and, 188<br />

OSPF authentication, 403<br />

RIP and, 342<br />

root accounts and, 73<br />

root authentication, 77, 78<br />

root user and, 14<br />

router security, 72<br />

set archival command, 36<br />

show command and, 14<br />

SNMP and, 153<br />

strategies for choosing, 73, 74<br />

user accounts and, 73, 83<br />

(see also plain-text passwords)<br />

Path message (RSVP), 484, 550<br />

PathErr message (RSVP), 533, 550<br />

pattern matching<br />

BERT tests, 229–231<br />

regular expressions and, 445<br />

642 | Index<br />

This is the Title of the Book, eMatter Edition<br />

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

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