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Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.6 - Page 824

spanning-tree vlan vlan-id port, priority priority, spanning-tree port-priority priority

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User Guidelines If the VLAN parameter is given, the priority is configured only for the selected VLANs (applies only when pvst or rapid-pvst mode is selected). Configuration without the VLAN parameter configures the port priority for RSTP, STP-PV, and RSTP-PV. If an interface is configured with both the spanning-tree vlan vlan-id portpriority priority command and the spanning-tree port-priority priority command, the spanning-tree vlan vlan-id port-priority priority value is used as the port priority. If a VLAN parameter is provided, the VLAN must have been previously configured or an error is thrown. An edge port is a port with spanning-tree port-fast enabled. A point-to-point link is a link configured as full-duplex. Edge-ports and point-to-point links directly transition to the forwarding state and do not delay for the listening and learning stages of spanning-tree. An edge port that receives a BPDU is no longer considered an edge-port and will utilize the configured port priority value. All interfaces and VLANs have 128 as priority value by default. By default, spanning-tree puts the lowest numbered operationally enabled interface in the forwarding state and blocks other interfaces. The priority value is used to override this default behavior. Interfaces with lower port priorities are preferred for forwarding over interfaces with numerically higher priority values. STP-PV/RSTP-PV uses the port priority value when the LAN port is configured as an edge port and uses the VLAN priority value when the interface is configured as a point-to-point link. MSTP uses the port priority regardless of whether the port is an edge port or not. Example The following example configures a port connected to a host to be least likely to be selected for forwarding to the root bridge, even if the host begins to send BPDUs. console(config-if-Gi1/0/1)#spanning-tree port-priority 240 console(config-if-Gi1/0/1)#spanning-tree vlan 10 port-priority 240 Layer 2 Switching Commands 824

Section	Page
Dell EMC Networking CLI	95
Introduction	95
Command Groups	95
Mode Types	101
Layer 2 Commands	103
ACL	103
MAC Address Table	105
Auto-VoIP	106
CDP Interoperability	106
DHCP L2 Relay	107
DHCP Snooping	108
Dynamic ARP Inspection	109
Ethernet Configuration	109
Ethernet CFM	111
Ethernet Ring Protection	113
Green Ethernet	114
GVRP	115
IGMP Snooping	116
IGMP Snooping Querier	117
Interface Error Disable and Auto Recovery	117
IP Addressing	118
IPv6 ACL	119
IPv6 MLD Snooping	120
IPv6 MLD Snooping Querier	120
IP Source Guard	121
iSCSI Optimization	121
Link Dependency	122
LLDP	122
Loop Protection	123
MLAG	124
Multicast VLAN Registration	125
Port Channel	126
Port Monitor	127
QoS	127
Spanning Tree	132
UDLD	134
VLAN	135
Switchport Voice VLAN	137
Multiple MAC Registration Protocol	138
Multiple VLAN Registration Protocol	138
Security Commands	139
AAA	139
Administrative Profiles	141
E-mail Alerting	141
RADIUS	143
TACACS+	146
802.1x	147
Captive Portal	149
Denial of Service	151
Management ACL	152
Password Management	153
SSH	154
Data Center Commands	155
OpenFlow	155
Layer 3 Routing Commands	156
ARP (IPv4)	156
BFD	157
BGP	157
BGP Routing Policy	166
DHCP Server and Relay Agent (IPv4)	167
DHCPv6	169
DHCPv6 Snooping	170
DVMRP	171
GMRP	172
IGMP	172
IGMP Proxy	173
IP Helper/DHCP Relay	174
IP Routing	175
IPv6 Routing	177
Loopback Interface	182
Multicast	182
IPv6 Multicast	184
OSPF	186
OSPFv3	190
IPv6 Policy-Based Routing	194
Router Discovery Protocol	195
Routing Information Protocol	195
Tunnel Interface	196
Unicast Reverse Path Forwarding	197
Virtual Router	197
Virtual Router Redundancy	198
Virtual Router Redundancy Protocol version 3 Commands	200
Switch Management Commands	201
Application Deployment	201
Auto-Install	202
CLI Macro	203
Clock	203
Command Line Configuration Scripting	204
DHCP Client	205
HiveAgent	205
Line	206
PHY Diagnostics	207
Power Over Ethernet (PoE)	208
RMON	209
Serviceability Tracing	209
sFlow	212
SNMP	213
Support Assist	214
SYSLOG	215
System Management	216
Telnet Server	220
Time Ranges	220
USB Flash Drive	221
User Interface	221
Web Server	222
Using the CLI	225
Introduction	225
Entering and Editing CLI Commands	225
History Buffer	226
Negating Commands	227
Show Command	227
CLI Output Filtering	228
Command Completion	229
Short Form Commands	230
Keyboard Shortcuts	230
Parameters	231
Command Scripting	232
CLI Command Notation Conventions	232
Interface Naming Conventions	233
Operating on Multiple Interfaces (Ranges)	236
Examples	237
Entering Network Addresses	239
CLI Command Modes	241
User Exec Mode	242
Privileged Exec Mode	242
Global Configuration Mode	243
Pre-configuration	244
Interface Configuration Modes	245
Identifying the Switch and Command Mode from the System Prompt	246
Navigating CLI Command Modes	246
Starting the CLI	256
Using CLI Functions and Tools	257
Configuration Management	257
Management Interface Security	259
Management ACL	262
Other CLI Tools and Capabilities	263
Layer 2 Switching Commands	271
ACL Commands	273
ACL Logging	273
How to Build ACLs	274
ip access-list	276
Syntax	276
Default Configuration	276
Command Mode	276
User Guidelines	276
deny \| permit (IP ACL)	276
Syntax	277
Default Configuration	281
Command Mode	281
User Guidelines	281
Command History	283
Example	283
deny \| permit (Mac-Access-List-Configuration)	283
Syntax	283
Default Configuration	285
Command Mode	285
User Guidelines	285
Command History	286
Example	286
ip access-group	286
Syntax	286
Default Configuration	286
Command Mode	286
User Guidelines	287
Examples	287
Command History	287
mac access-group	288
Syntax	288
Default Configuration	288
Command Mode	288
User Guidelines	288
Example	289
mac access-list extended	289
Syntax	289
Default Configuration	289
Command Mode	289
User Guidelines	290
Example	290
mac access-list extended rename	290
Syntax	290
Default Configuration	290
Command Mode	290
User Guidelines	290
Example	290
remark	291
Syntax	291
Default Configuration	291
Command Mode	291
User Guidelines	291
Command History	292
Example	292
service-acl input	292
Syntax	292
Default Configuration	293
Command Mode	293
User Guidelines	293
Example	293
show service-acl interface	293
Syntax	293
Default Configuration	293
Command Mode	293
User Guidelines	294
Example	294
show access-lists interface	294
Syntax	294
Examples	295
show ip access-lists	295
Syntax	295
Command History	296
Examples	296
show mac access-lists	298
Syntax	298
Default Configuration	298
Command Mode	298
User Guidelines	299
Command History	299
Example	299
MAC Address Table Commands	300
clear mac address-table	300
Syntax	301
Default Configuration	301
Command Mode	301
User Guidelines	301
Example	301
mac address-table aging-time	301
Syntax	301
Default Configuration	302
Command Mode	302
User Guidelines	302
Example	302
mac address-table multicast forbidden address	302
Syntax	302
Default Configuration	303
Command Mode	303
User Guidelines	303
Examples	303
mac address-table static	303
Syntax	303
Default Configuration	304
Command Mode	304
User Guidelines	304
Example	304
switchport port-security (Global Configuration)	304
Syntax	304
Default Configuration	305
Command Mode	305
User Guidelines	305
Command History	306
Example	306
switchport port-security (Interface Configuration)	308
Syntax	308
Default Configuration	309
Command Mode	309
User Guidelines	309
Command History	312
Example	312
show mac address-table multicast	313
Syntax	313
Default Configuration	313
Command Mode	313
User Guidelines	313
Example	314
Command History	314
show mac address-table	314
Syntax	314
Default Configuration	315
Command Mode	315
User Guidelines	315
Example	315
show mac address-table address	315
Syntax	315
Default Configuration	316
Command Mode	316
User Guidelines	316
Example	316
show mac address-table count	316
Syntax	316
Default Configuration	317
Command Mode	317
User Guidelines	317
Example	317
show mac address-table dynamic	317
Syntax	317
Default Configuration	317
Command Mode	318
User Guidelines	318
Example	318
show mac address-table interface	318
Syntax	318
Default Configuration	318
Command Mode	318
User Guidelines	319
Example	319
show mac address-table static	319
Syntax	319
Default Configuration	319
Command Mode	319
User Guidelines	320
Example	320
show mac address-table vlan	320
Syntax	320
Default Configuration	320
Command Mode	320
User Guidelines	320
Example	320
show port-security	321
Syntax	321
Default Configuration	321
Command Mode	321
User Guidelines	321
Command History	323
Example	323
Auto-VoIP Commands	324
show switchport voice	324
Syntax	325
Default Configuration	325
Command Mode	325
User Guidelines	325
Examples	325
switchport voice detect auto	327
Syntax	327
Default Configuration	327
Command Mode	327
User Guidelines	327
Example	327
CDP Interoperability Commands	328
clear isdp counters	328
Syntax	328
Default Configuration	328
Command Mode	328
User Guidelines	328
Example	328
clear isdp table	328
Syntax	328
Default Configuration	329
Command Mode	329
User Guidelines	329
Example	329
isdp advertise-v2	329
Syntax	329
Default Configuration	329
Command Mode	329
User Guidelines	329
Example	329
isdp enable	330
Syntax	330
Default Configuration	330
Command Mode	330
User Guidelines	330
Example	330
isdp holdtime	330
Syntax	331
Default Configuration	331
Command Mode	331
User Guidelines	331
Example	331
isdp timer	331
Syntax	331
Default Configuration	332
Command Mode	332
User Guidelines	332
Example	332
show isdp	332
Syntax	332
Default Configuration	332
Command Mode	332
User Guidelines	332
Example	332
show isdp entry	333
Syntax	333
Default Configuration	333
Command Mode	333
User Guidelines	333
Example	333
show isdp interface	334
Syntax	334
Default Configuration	334
Command Mode	334
User Guidelines	334
Example	334
show isdp neighbors	335
Syntax	335
Default Configuration	335
Command Mode	335
User Guidelines	335
Example	335
show isdp traffic	336
Syntax	336
Default Configuration	336
Command Mode	336
User Guidelines	336
Example	336
DHCP Layer 2 Relay Commands	338
dhcp l2relay (Global Configuration)	338
Syntax	338
Default Configuration	338
Command Mode	338
User Guidelines	338
Example	339
dhcp l2relay (Interface Configuration)	339
Syntax	339
Default Configuration	339
Command Mode	339
User Guidelines	339
Example	339
dhcp l2relay circuit-id	339
Syntax	339
Default Configuration	340
Command Mode	340
User Guidelines	340
Example	340
dhcp l2relay remote-id	340
Syntax	340
Default Configuration	340
Command Mode	341
User Guidelines	341
Example	341
dhcp l2relay trust	341
Syntax	341
Default Configuration	341
Configuration Mode	341
User Guidelines	341
Example	341
dhcp l2relay vlan	341
Syntax	342
Default Configuration	342
Command Mode	342
User Guidelines	342
Example	342
show dhcp l2relay all	342
Syntax	342
Default Configuration	342
Command Mode	342
User Guidelines	343
Example	343
show dhcp l2relay interface	343
Syntax	343
Default Configuration	343
Command Mode	343
User Guidelines	344
Command History	344
Example	344
show dhcp l2relay stats interface	344
Syntax	344
Default Configuration	344
Command Mode	344
User Guidelines	344
Example	344
show dhcp l2relay agent-option vlan	345
Syntax	345
Default Configuration	345
Command Mode	345
User Guidelines	345
Example	345
show dhcp l2relay vlan	346
Syntax	346
Default Configuration	346
Command Mode	346
User Guidelines	346
Example	346
show dhcp l2relay circuit-id vlan	346
Syntax	346
Default Configuration	347
Command Mode	347
User Guidelines	347
Example	347
show dhcp l2relay remote-id vlan	347
Syntax	347
Default Configuration	347
Command Mode	348
User Guidelines	348
Example	348
clear dhcp l2relay statistics interface	348
Syntax	348
Default Configuration	348
Command Mode	348
User Guidelines	348
Example	348
DHCP Snooping Commands	349
clear ip dhcp snooping binding	349
Syntax	350
Default Configuration	350
Command Mode	350
User Guidelines	350
Command History	350
clear ip dhcp snooping statistics	350
Syntax	350
Default Configuration	350
Command Mode	350
User Guidelines	350
Example	351
ip dhcp snooping	351
Syntax	351
Default Configuration	351
Command Mode	351
User Guidelines	351
Example	351
ip dhcp snooping binding	352
Syntax	352
Default Configuration	352