Allied-telesis AT-S83 Manual do Utilizador Página 320
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Chapter 15: Open Shortest Path First (OSPF) Commands
320
IP OSPF DATABASE-FILTER
Syntax
ip ospf (A.B.C.D) database-filter all out
no ip ospf (A.B.C.D) database-filter
Parameters
A.B.C.D Specifies the IP address of the interface. This is an
optional parameter.
all Specifies all LSAs are filtered.
out Specifies outgoing LSAs are filtered.
Description
Use the IP OSPF DATABASE-FILTER command to turn on the LSA
database-filter for a particular interface. By default, this command is
disabled which means that all outgoing LSAs are flooded to the interface.
OSPF floods new LSAs over all interfaces in an area, except the interface
on which the LSA arrives. This redundancy ensures robust flooding.
However, too much redundancy can waste bandwidth and might lead to
excessive link and CPU usage in certain topologies, resulting in
destabilizing the network. To avoid this issue, use the IP OSPF
DATABASE-FILTER command to block flooding of LSAs over specified
interfaces.
Use the no form of this command to turn off the filter.
Command Mode
Interface mode
Example
The following example filters all LSAs and outgoing LSAs on interface 3:
switch# configure terminal
switch(config)# interface xe3
switch(config-if)# ip ospf database-filter all out
- Command Line Interface 1
- User’s Guide 1
- Contents 3
- Contacting Allied Telesis 14
- Interface 15
- Introducing the Command Modes 16
- Commands used to 17
- View Command 20
- Privileged 21
- Executive 21
- Configuration 22
- Terminal Mode 22
- Line Mode 25
- Key Chain Mode 26
- Username:manager 27
- Password: 27
- (none) # 27
- Formatting Commands 28
- Command Line 29
- Conventions 29
- Introduction 31
- Ethernet Technology 32
- Switching 33
- Technology 33
- Routing Protocol 33
- Chapter 2: Introduction 34
- Port Descriptions 36
- Software Features 37
- Standard CLI 38
- MIB support for: 38
- Basic Management Features 39
- Creating User Accounts 40
- SNMP Settings 41
- Assigning an IP Address 43
- View Mode Commands 45
- CLEAR ARP-CACHE 46
- CLEAR IP 47
- CLEAR MAC ADDRESS-TABLE 48
- DEBUG DOT1X 50
- DEBUG MSTP 52
- DEBUG RIP 53
- DEBUG RSTP 54
- DEBUG SNMP 55
- DEBUG STP 56
- Chapter 4: View Mode Commands 58
- SHOW INTERFACE SWITCHPORT 62
- SHOW RUNNING-CONFIG 64
- Chapter 5 67
- BOOT CONFIG-FILE 69
- CONFIGURE TERMINAL 70
- Building configuration 71
- DOWNLOAD A.B.C.D FILE-NAME 73
- DOWNLOAD SERIAL 74
- DOT1X INITIALIZE 75
- SHOW BOOT 77
- SHOW INTERFACE 79
- SHOW INTERFACE STATUS ALL 80
- SHOW NTP ASSOCIATIONS DETAIL 81
- SHOW NTP STATUS 82
- SHOW STATIC-CHANNEL-GROUP 83
- SHOW SYSTEM STATUS 84
- SHOW VERSION 85
- SYSTEM REBOOT 86
- TERMINAL 88
- UNDEBUG DOT1X 90
- UNDEBUG OSPF EVENTS 91
- UNDEBUG OSPF IFSM 92
- UNDEBUG OSPF LSA 93
- UNDEBUG OSPF NFSM 94
- UNDEBUG OSPF NSM 95
- UNDEBUG OSPF PACKET 96
- UNDEBUG OSPF ROUTE 98
- UNDEBUG RIP 99
- UPLOAD A.B.C.D FILE-NAME 100
- UPLOAD SERIAL 101
- Parameters 102
- Description 102
- Command Mode 102
- Examples 102
- Related Commands 104
- Configuration Terminal Mode 105
- Commands 105
- ACCESS-LIST 107
- DEBUG OSPF EVENTS 110
- DEBUG OSPF IFSM 112
- DEBUG OSPF LSA 113
- DEBUG OSPF NFSM 114
- DEBUG OSPF NSM 115
- DEBUG OSPF PACKET 116
- DEBUG OSPF ROUTE 118
- DOT1X SYSTEM-AUTH-CTRL 119
- ENABLE PASSWORD 120
- ENABLE SECRET 121
- FIB RETAIN 123
- HOSTNAME 124
- INTERFACE 125
- IP RADIUS SOURCE-INTERFACE 126
- LINE CONSOLE 127
- LINE VTY 128
- LOG FILE 129
- LOG TRAP 130
- Validation Commands 131
- MAC ADDRESS-TABLE AGEING-TIME 132
- MAXIMUM-PATHS 135
- NTP ACCESS-GROUP 136
- NTP AUTHENTICATE 137
- NTP AUTHENTICATION-KEY 138
- NTP BROADCASTDELAY 139
- NTP MASTER 140
- NTP PEER 141
- NTP SERVER 142
- NTP TRUSTED-KEY 143
- ROUTE-MAP 144
- ROUTER-ID 145
- UNDEBUG ALL 146
- USERNAME 147
- Chapter 7 149
- IP DOMAIN-LIST 150
- IP DOMAIN-LOOKUP 151
- IP DOMAIN-NAME 152
- IP EXTCOMMUNITY-LIST 153
- IP FORWARDING 154
- (SNMP) Commands 155
- SNMP-SERVER COMMUNITY 156
- SNMP-SERVER CONTACT 157
- SNMP-SERVER ENABLE 158
- SNMP-SERVER ENABLE TRAPS SNMP 161
- SNMP-SERVER ENGINEID LOCAL 162
- SNMP-SERVER GROUP 163
- SNMP-SERVER HOST 165
- SNMP-SERVER LOCATION 167
- SNMP-SERVER USER 168
- SNMP-SERVER VIEW 170
- Interface Configuration Mode 171
- ARP-AGEING-TIMEOUT 173
- BANDWIDTH 174
- DESCRIPTION 175
- FLOWCONTROL BACKPRESSURE 176
- FLOWCONTROL RECEIVE 177
- FLOWCONTROL SEND 178
- IP ACCESS-GROUP 179
- IP PROXY-ARP 180
- MAC-ADDRESS 181
- MULTICAST 184
- SHOW CLI 185
- SHUTDOWN 187
- SPANNING-TREE EDGEPORT 188
- SPANNING-TREE FORCE-VERSION 189
- SPANNING-TREE GUARD ROOT 190
- SPANNING-TREE LINK-TYPE 191
- SPANNING-TREE MST INSTANCE 192
- SPANNING-TREE PATH-COST 193
- SPANNING-TREE PORTFAST 194
- SPANNING-TREE PRIORITY 195
- Example 196
- STATIC-CHANNEL-GROUP 198
- STORM-CONTROL 199
- SWITCHPORT ACCESS VLAN 201
- SWITCHPORT MODE ACCESS 202
- SWITCHPORT MODE TRUNK 204
- SWITCHPORT TRUNK ALLOWED VLAN 206
- SWITCHPORT TRUNK NATIVE 208
- IP Interface Commands 209
- IP ADDRESS 211
- Chapter 11 213
- DOT1X MAX-REQ 214
- DOT1X PORT-CONTROL 215
- DOT1X QUIET-PERIOD 216
- DOT1X REAUTHENTICATION 217
- DOT1X REAUTHMAX 218
- DOT1X TIMEOUT RE-AUTHPERIOD 221
- DOT1X TIMEOUT SERVER-TIMEOUT 222
- DOT1X TIMEOUT SUPP-TIMEOUT 223
- DOT1X TIMEOUT TX-PERIOD 224
- RADIUS-SERVER DEADTIME 226
- RADIUS-SERVER HOST 227
- RADIUS-SERVER KEY 228
- RADIUS-SERVER TIMEOUT 230
- SHOW DOT1X 231
- SHOW DOT1X ALL 232
- SHOW DOT1X INTERFACE 235
- Port Configuration 239
- FLOWCONTROL OFF 240
- FLOWCONTROL ON 241
- SHOW FLOWCONTROL INTERFACE 242
- Spanning Tree Protocol (STP) 243
- REGION REGION_NAME 244
- REVISION REVISION_NUMBER 245
- SHOW SPANNING-TREE 246
- SPANNING-TREE ACQUIRE 250
- SPANNING-TREE FORWARD-TIME 253
- SPANNING-TREE HELLO-TIME 254
- SPANNING-TREE MAX-AGE 255
- SPANNING-TREE MAX-HOPS 256
- SPANNING-TREE MODE 257
- SPANNING-TREE MST ENABLE 259
- SPANNING-TREE RSTP ENABLE 267
- SPANNING-TREE STP ENABLE 268
- “TIMERS BASIC” on page 306 270
- “VERSION” on page 308 270
- CLEAR IP RIP ROUTE 271
- DEFAULT-INFORMATION ORIGINATE 273
- DEFAULT-METRIC 274
- DISTANCE 275
- Reference 276
- DISTRIBUTE-LIST 277
- IP RIP AUTHENTICATION MODE 279
- IP RIP AUTHENTICATION STRING 280
- IP RIP RECEIVE-PACKET 281
- IP RIP RECEIVE VERSION 282
- IP RIP SEND-PACKET 283
- IP RIP SEND VERSION 284
- IP RIP SPLIT-HORIZON 285
- KEY CHAIN 287
- MAXIMUM-PREFIX 288
- NEIGHBOR 289
- OFFSET-LIST 291
- PASSIVE-INTERFACE 293
- RECV-BUFFER-SIZE 294
- REDISTRIBUTE CONNECTED 295
- ROUTER RIP 298
- SHOW IP PROTOCOLS RIP 300
- SHOW IP RIP 301
- Equivalent Command 302
- SHOW IP RIP DATABASE 303
- SHOW IP RIP INTERFACE 304
- TIMERS BASIC 306
- AUTO-COST REFERENCE-BANDWIDTH 312
- COMPATIBLE RFC1583 313
- HOST AREA 314
- IP OSPF AUTHENTICATION 316
- IP OSPF AUTHENTICATION-KEY 317
- IP OSPF COST 319
- IP OSPF DATABASE-FILTER 320
- IP OSPF DEAD-INTERVAL 322
- IP OSPF DISABLE ALL 324
- IP OSPF HELLO-INTERVAL 325
- IP OSPF MESSAGE-DIGEST-KEY 326
- IP OSPF MTU 328
- IP OSPF MTU-IGNORE 330
- IP OSPF NETWORK 331
- IP OSPF PRIORITY 332
- IP OSPF RETRANSMIT-INTERVAL 334
- IP OSPF TRANSMIT-DELAY 335
- MAX-CONCURRENT-DD 336
- MAX-UNUSE-PACKET 337
- NETWORK AREA 340
- OSPF ABR-TYPE 342
- OVERFLOW DATABASE 344
- OVERFLOW DATABASE EXTERNAL 346
- REFRESH TIMER 349
- ROUTER OSPF 350
- SUMMARY-ADDRESS 351
- TIMERS SPF 353
- Line Mode Commands 355
- EXEC-TIMEOUT 356
- PRIVILEGE 358
- VLAN Commands 359
- SHOW INTERFACE VLAN 360
- SHOW VLAN 361
- VLAN DATABASE 364
- VLAN NAME 365
- VLAN STATE 366
- Sample Configurations 367
- Configuring VLANs 371
- Numerics 375
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