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Dell PowerConnect 8100 Series CLI Reference Guide - Page 1334

User Guidelines, nsf helper strict-lsa-checking, Syntax, Default Configuration, Command Mode

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User Guidelines The grace LSA announcing the graceful restart includes a restart reason. Reasons 1 (software restart) and 2 (software reload/upgrade) are considered planned restarts. Reasons 0 (unknown) and 3 (switch to redundant control processor) are considered unplanned restarts. nsf ietf helper disable is functionally equivalent to no nsf helper and is supported solely for IS CLI compatibility. nsf helper strict-lsa-checking Use the nsf-helper strict-lsa-checking command to require that an OSPF helpful neighbor exit helper mode whenever a topology change occurs. Use the "no" form of this command to allow OSPF to continue as a helpful neighbor in spite of topology changes. Syntax nsf [ietf] helper strict-lsa-checking no nsf [ietf] helper strict-lsa-checking • ietf -This keyword is used to distinguish the IETF standard implementation of graceful restart from other implementations. Since the IETF implementation is the only one supported, this keyword is optional. Default Configuration A helpful neighbor exits helper mode when a topology change occurs. Command Mode Router OSPFv3 Configuration mode User Guidelines The restarting router is unable to react to topology changes. In particular, the restarting router will not immediately update its forwarding table; therefore, a topology change may introduce forwarding loops or black holes that persist until the graceful restart completes. By exiting the graceful restart on a topology change, a router tries to eliminate the loops or black holes as quickly as possible by routing around the restarting router. 1334 OSPFv3 Commands

Section	Page
Command Groups	77
Introduction	77
Command Groups	77
Mode Types	81
Layer 2 Commands	83
AAA	83
Administrative Profiles	84
ACL	85
Address Table	86
Auto-VoIP	87
CDP Interoperability	87
DHCP L2 Relay	88
DHCP Management Interface	89
DHCP Snooping	89
Dynamic ARP Inspection	90
E-mail Alerting	91
Ethernet Configuration	92
Ethernet CFM	94
GVRP	95
IGMP Snooping	95
IGMP Snooping Querier	96
IP Addressing	97
IPv6 ACL	98
IPv6 MLD Snooping	99
IPv6 MLD Snooping Querier	99
IP Source Guard	100
iSCSI Optimization	101
Link Dependency	101
LLDP	102
Multicast VLAN Registration	102
Port Channel	103
Port Monitor	104
QoS	104
Radius	108
Spanning Tree	110
TACACS+	112
VLAN	112
802.1x	115
Data Center Technology Commands	117
Data Center Bridging Commands	117
FIP Snooping Commands	117
Priority Flow Control Commands	118
Layer 3 Commands	119
ARP (IPv4)	119
DHCP Server and Relay Agent (IPv4)	120
DHCPv6	121
DVMRP	122
IGMP	123
IGMP Proxy	124
IP Helper/DHCP Relay	125
IP Routing	126
IPv6 Routing	127
Loopback Interface	130
Multicast	130
IPv6 Multicast	132
OSPF	134
OSPFv3	138
Router Discovery Protocol	142
Routing Information Protocol	142
Tunnel Interface	144
Virtual Router Redundancy	144
Utility Commands	146
Auto-Install	146
Captive Portal	146
CLI Macro	149
Clock	149
Command Line Configuration Scripting	150
Denial of Service	151
Line	152
Management ACL	153
Mode	153
Password Management	153
PHY Diagnostics	155
RMON	155
SDM Templates	156
Serviceability Tracing	156
sFlow	158
SNMP	158
SSH	159
Syslog	160
System Management	161
Telnet Server	164
Terminal Length	164
Time Ranges	164
USB Flash Drive	165
User Interface	165
Web Server	165
Using the CLI	167
Introduction	167
Entering and Editing CLI Commands	167
History Buffer	168
Negating Commands	169
Show Command	169
Command Completion	170
Short Form Commands	170
Keyboard Shortcuts	170
Parameters	171
Operating on Multiple Objects (Range)	172
Command Scripting	173
CLI Command Notation Conventions	173
Interface Naming Conventions	174
Examples	176
CLI Command Modes	177
User EXEC Mode	178
Privileged EXEC Mode	178
Global Configuration Mode	179
Interface and Other Specific Configuration Modes	179
Identifying the Switch and Command Mode from the System Prompt	181
Navigating CLI Command Modes	182
Starting the CLI	190
Easy Setup Wizard	190
Using CLI Functions and Tools	198
Configuration Management	198
Management Interface Security	200
Management ACL	203
Other CLI Tools and Capabilities	204
Layer 2 Switching Commands	235
AAA Commands	237
TACACS+ Accounting	238
Accounting Method Lists	239
Access Line Modes	239
Commands in this Chapter	239
aaa authentication dot1x default	240
Syntax	240
Parameter Description	240
Default Configuration	240
Command Mode	241
User Guidelines	241
Example	241
aaa authentication enable	241
Syntax	241
Default Configuration	242
Command Mode	242
User Guidelines	242
Example	243
aaa authentication login	243
Syntax	243
Default Configuration	244
Command Mode	244
User Guidelines	244
Example	244
aaa authorization	245
Syntax	245
Parameter Description	245
Default Configuration	246
Command Mode	246
User Guidelines	246
aaa authorization network default radius	247
Syntax	247
Default Configuration	247
Command Mode	247
User Guidelines	247
Example	247
aaa ias-user username	248
Syntax	248
Parameter Description	248
Default Configuration	248
Command Mode	248
User Guidelines	248
Examples	248
aaa new-model	249
Syntax	249
Parameter Description	249
Default Configuration	249
Command Mode	249
User Guidelines	249
Example	249
clear (IAS)	249
Syntax	249
Parameter Description	250
Default Configuration	250
Command Mode	250
User Guidelines	250
Example	250
authorization	250
Syntax	250
Parameter Description	250
Default Configuration	251
Command Mode	251
User Guidelines	251
Examples	251
enable authentication	251
Syntax	252
Default Configuration	252
Command Mode	252
User Guidelines	252
Example	252
enable password	252
Syntax	252
Default Configuration	253
Command Mode	253
User Guidelines	253
Example	253
ip http authentication	253
Syntax	253
Default Configuration	254
Command Mode	254
User Guidelines	254
Example	254
ip https authentication	254
Syntax	254
Parameter Description	255
Default Configuration	255
Command Mode	255
User Guidelines	255
Example	255
login authentication	256
Syntax	256
Default Configuration	256
Command Mode	256
User Guidelines	256
Example	256
password (aaa IAS User Configuration)	257
Syntax	257
Parameter Description	257
Default Configuration	257
Command Mode	257
User Guidelines	257
Example	257
password (Line Configuration)	258
Syntax	258
Default Configuration	258
Command Mode	258
User Guidelines	258
Example	258
password (User EXEC)	259
Syntax	259
Parameter Description	259
Default Configuration	259
Command Mode	259
User Guidelines	259
Example	259
show aaa ias-users	260
Syntax	260
Parameter Description	260
Default Behavior	260
Command Mode	260
User Guidelines	260
Example	260
show aaa statistics	261
Syntax	261
Default Configuration	261
Command Mode	261
User Guidelines	261
Examples	261
show authentication methods	262
Syntax	262
Default Configuration	262
Command Mode	262
User Guidelines	262
Example	262
show authorization methods	263
Syntax	263
Default Configuration	263
Command Mode	263
User Guidelines	264
Example	264
show users accounts	265
Syntax	265
Parameter Description	265
Default Configuration	265
Command Mode	265
User Guidelines	265
Example	265
show users login-history	266
Syntax	266
Default Configuration	266
Command Mode	266
User Guidelines	266
Example	267
username	267
Syntax	267
Parameter Description	267
Default Configuration	268
Command Mode	268
User Guidelines	268
Example	269
username unlock	270
Syntax	270
Parameter Description	270
Default Configuration	270
Command Mode	270
User Guidelines	270
Administrative Profiles Commands	271
Overview	271
RADIUS and TACACS+	272
Commands in this Chapter	272
admin-profile	273
Syntax	273
Parameter Description	273
Default Configuration	273
Command Mode	273
User Guidelines	273
Example	273
description (Administrative Profile Config)	274
Syntax	274
Parameter Description	274
Default Configuration	274
Command Mode	274
User Guidelines	274
Example	274
rule	275
Syntax	275
Parameter Description	275
Default Configuration	275
Command Mode	275
User Guidelines	275
Example	275
show admin-profiles	276
Syntax	276
Parameter Description	276
Default Configuration	276
Command Mode	276
User Guidelines	276
Example	277
show cli modes	277
Syntax	277
Default Configuration	277
Command Mode	277
User Guidelines	277
Example	278
ACL Commands	279
ACL Logging	279
How to Build ACLs	280
Commands in this Chapter	282
access-list	282
Parameter Description	283
Default Configuration	283
Command Mode	284
User Guidelines	284
Examples	284
deny \| permit (IP ACL)	284
Syntax	284
Parameter Description	285
Default Configuration	285
Command Mode	285
User Guidelines	285
deny \| permit (Mac-Access-List-Configuration)	286
Syntax	286
Parameter Description	287
Default Configuration	288
Command Mode	288
User Guidelines	288
Example	288
ip access-group	288
Syntax	288
Default Configuration	289
Command Mode	289
User Guidelines	289
Examples	289
mac access-group	289
Syntax	289
Default Configuration	290
Command Mode	290
User Guidelines	290
Example	290
mac access-list extended	290
Syntax	291
Default Configuration	291
Command Mode	291
User Guidelines	291
Example	291
mac access-list extended rename	291
Syntax	291
Default Configuration	291
Command Mode	292
User Guidelines	292
Example	292
service-acl input	292
Syntax	292
Parameter Description	292
Default Configuration	293
Command Mode	293
User Guidelines	293
show service-acl interface	293
Syntax	293
Parameter Description	293
Default Configuration	293
Command Mode	293
User Guidelines	293
Example	294
show ip access-lists	294
Syntax	294
Parameter Description	294
Examples	295
show mac access-list	295
Syntax	295
Parameter Description	295
Default Configuration	295
Command Mode	295
User Guidelines	296
Example	296
Address Table Commands	297
Commands in this Chapter	298
clear mac address-table	298
Syntax	298
Parameter Description	298
Default Configuration	299
Command Mode	299
User Guidelines	299
Example	299
mac address-table aging-time	299
Syntax	299
Parameter Description	299
Default Configuration	300
Command Mode	300
User Guidelines	300
Example	300
mac address-table multicast filtering	300
Syntax	300
Parameter Description	300
Default Configuration	301
Command Mode	301
User Guidelines	301
Example	301
mac address-table multicast forbidden address	301
Syntax	301
Parameter Description	302
Default Configuration	302
Command Mode	302
User Guidelines	302
Examples	302
mac address-table multicast forbidden forward- unregistered	303
Syntax	303
Parameter Description	303
Default Configuration	303
Command Mode	303
User Guidelines	303
Example	303
mac address-table multicast forward-all	304
Syntax	304
Parameter Description	304
Default Configuration	304
Command Mode	304
User Guidelines	304
Example	304
mac address-table multicast forward- unregistered	305
Syntax	305
Parameter Description	305
Default Configuration	305
Command Mode	305
User Guidelines	305
Example	305
mac address-table multicast static	306
Syntax	306
Parameter Description	306
Default Configuration	306
Command Mode	306
User Guidelines	307
Examples	307
mac address-table static	307
Syntax	307
Syntax Description	307
Default Configuration	308
Command Mode	308
User Guidelines	308
Example	308
port security	308
Syntax	308
Default Configuration	308
Command Mode	308
User Guidelines	309
Example	309
port security max	309
Syntax	309
Default Configuration	309
Command Mode	309
User Guidelines	309
Example	310
show mac address-table multicast	310
Syntax	310
Default Configuration	310
Command Mode	310
User Guidelines	310
Example	310
show mac address-table filtering	311
Syntax	311
Default Configuration	311
Command Mode	311
User Guidelines	311
Example	311
show mac address-table	312
Syntax	312
Parameter Description	312
Default Configuration	312
Command Mode	312
User Guidelines	312
Example	312
show mac address-table address	313
Syntax	313
Parameter Description	313
Default Configuration	313
Command Mode	314
User Guidelines	314
Example	314
show mac address-table count	314
Syntax	314
Parameter Description	314
Default Configuration	314
Command Mode	315