Index_L

L

-l flag in ssh-keygen, 13

lab accounts

configuring, 14–15

parameters for, 11

verifying, 15–17

Label Distribution Protocol (LDP), 636

label objects, 636

label pop operations, 636

label push operations, 636

label request objects, 636

label swap operations, 636

label-switched paths (LSPs), 637

label-switching routers (LSRs), 637

label values, 637

labels, 636

LCP (Link Control Protocol), 83–88

LDAP (Lightweight Directory Access Protocol), 637

LDP (Label Distribution Protocol), 636

leaky bucket rate limiting

configuring, 119–121

verifying, 121–124, 122–123

leaky routes in IS-IS, 286–290

case study, 326–328

configuring, 290–292

verifying, 292–293

Lightweight Directory Access Protocol (LDAP), 637

line build testing, 90

line loopback method, 637

Link Control Protocol (LCP), 83–88

link keyword, 23

link-level encapsulation, 65

link-state acknowledgments, 637

link-state advertisements. See LSAs(link-state advertisements) in OSPF

link-state databases. See LSDBs(link-state databases)

Link State Protocol Data Units (LSPs)

defined, 637

in IS-IS, 256, 297, 316

link-state request lists, 637

link-state request packets, 637

link-state updates, 637

links

defined, 637

virtual, 198–201, 198

LMI (Local Management Interface), 71, 74–75

lo0 interface

configuring, 60–61

verifying, 61–64

load balancing

in EBGP, 501–502

in IBGP, 422–426, 455–456

in OSPF, 223, 241–242

load merge terminal command, 39–40

in EBGP, 526

in IBGP, 379

in RIP, 212

load override terminal command, 38

loading adjacency state, 637

local-address option

in EBGP, 491

in IBGP, 376, 391

local AS number, 375–377

local-as option, 557

Local Management Interface (LMI), 71, 74–75

local passwords

for lab account, 16–17

for users, 47

local preferences

in BGP, 637

in EBGP, 547–548

in IBGP, 429–435

Local-RIB table, 638

local significance concept, 638

local time zone setting, 27–28

log-updown option, 376

logging in as root, 5, 47

logical operators, 638

logical properties

for ATM interfaces, 91–93

for Ethernet interfaces, 102–103

for POS interfaces, 68–69

logical units

for ATM, 91, 96–97

for IS-IS, 321–322

loopback interfaces for, 60

for POS interfaces, 68

longer match type, 638

loopback-based peering, 376

loopback interfaces, 60–64

loopbacks and loopback addresses

in ATM, 90

in EBGP, 482, 482–483

in Ethernet interfaces, 101

in IBGP, 376

confederations, 403–404, 403–404

route reflection, 387, 387, 389, 389

in IS-IS, 324

in OSPF, 155, 230

in stub areas, 181

in TSAs, 186

loops

in EBGP, 542–543

in RIP, 219

loops parameter, 542

loose hops, 638

loose paths, 638

LSAs (link-state advertisements) in OSPF, 154–155, 179, 201

in address summarization, 196

defined, 637

in LSDB, 182, 185

in NSSAs, 188, 193

in stub areas, 179, 181–182

in TSAs, 187

in virtual links, 199

LSDBs (link-state databases)

defined, 637

in IS-IS, 263, 316

in OSPF, 154, 179

LSAs in, 182, 185

in NSSAs, 193

LSPs (label-switched paths), 637

LSPs (Link State Protocol Data Units)

defined, 637

in IS-IS, 256, 297, 316

LSRs (label-switching routers), 637