Cisco 3020 - Cisco Catalyst Blade Switch Specifications Page 471
- Page / 744
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
2-443
Cisco Catalyst Blade Switch for HP Command Reference
OL-8916-01
Chapter 2 Cisco Catalyst Blade Switch 3020 for HP Cisco IOS Commands
spanning-tree extend system-id
spanning-tree extend system-id
Use the spanning-tree extend system-id global configuration command to enable the extended system
ID feature.
spanning-tree extend system-id
Note Though visible in the command-line help strings, the no version of this command is not supported. You
cannot disable the extended system ID feature.
Syntax Description This command has no arguments or keywords.
Defaults The extended system ID is enabled.
Command Modes Global configuration
Command History
Usage Guidelines The switch supports the IEEE 802.1t spanning-tree extensions. Some of the bits previously used for the
switch priority are now used for the extended system ID (VLAN identifier for the per-VLAN
spanning-tree plus [PVST+] and rapid PVST+ or as an instance identifier for the multiple spanning tree
[MST]).
The spanning tree uses the extended system ID, the switch priority, and the allocated spanning-tree MAC
address to make the bridge ID unique for each VLAN or multiple spanning-tree instance.
Support for the extended system ID affects how you manually configure the root switch, the secondary
root switch, and the switch priority of a VLAN. For more information, see the “spanning-tree mst root”
and the “spanning-tree vlan” sections.
If your network consists of switches that do not support the extended system ID and switches that do
support it, it is unlikely that the switch with the extended system ID support will become the root switch.
The extended system ID increases the switch priority value every time the VLAN number is greater than
the priority of the connected switches.
Release Modification
12.2(25)SEF This command was introduced.
- Command Reference 1
- CONTENTS 3
- Contents 10
- OL-8916-01 10
- Audience 15
- Purpose 15
- Conventions 15
- Related Publications 16
- Obtaining Documentation 17
- Documentation Feedback 18
- Submitting a Service Request 20
- CLI Command Modes 23
- User EXEC Mode 25
- Privileged EXEC Mode 25
- Global Configuration Mode 25
- Interface Configuration Mode 26
- VLAN Configuration Mode 27
- Line Configuration Mode 27
- IOS Commands 29
- -lanbasek9-mz.122-25.SEF 41
- Switch# clear vmps statistics 75
- Switch# clear vtp counters 76
- IGMP profile number 147
- Switch(config)# mls qos 207
- Command Description 228
- service-policy 282
- • IP address and network mask 287
- setup express 290
- interface-id 297
- show boot 300
- show dot1x 321
- show eap 324
- show errdisable detect 329
- show errdisable flap-values 331
- show etherchannel 334
- show interfaces 339
- show lacp 362
- show link state group 367
- show mac access-group 369
- show mac address-table 371
- show mac address-table vlan 388
- show mls qos input-queue 392
- show mls qos interface 396
- show mls qos maps 397
- show mls qos queue-set 401
- show monitor 403
- show mvr 406
- show policy-map 417
- show port-security 418
- show spanning-tree 422
- show udld 432
- show vlan 436
- show vmps 445
- show vtp 447
- shutdown vlan 452
- snmp-server enable traps 453
- snmp-server host 456
- snmp trap mac-notification 461
- spanning-tree backbonefast 462
- spanning-tree bpdufilter 464
- spanning-tree bpduguard 466
- • 1000 Mbps—4 467
- • 100 Mbps—19 467
- • 10 Mbps—100 467
- spanning-tree cost 468
- command to display an 469
- spanning-tree guard 473
- spanning-tree link-type 475
- spanning-tree mode 480
- • 1000 Mbps—20000 483
- • 100 Mbps—200000 483
- • 10 Mbps—2000000 483
- spanning-tree mst cost 484
- spanning-tree mst max-age 487
- spanning-tree mst max-hops 488
- spanning-tree mst priority 493
- spanning-tree mst root 494
- spanning-tree port-priority 497
- spanning-tree uplinkfast 503
- spanning-tree vlan 505
- srr-queue bandwidth limit 511
- srr-queue bandwidth shape 512
- srr-queue bandwidth share 514
- storm-control 516
- switchport access 519
- switchport backup interface 521
- switchport block 524
- switchport mode 526
- switchport nonegotiate 528
- switchport port-security 530
- switchport priority extend 538
- switchport trunk 540
- switchport voice vlan 543
- system mtu 545
- traceroute mac 548
- traceroute mac ip 551
- Switch(config)# udld enable 556
- udld port 557
- vlan (global configuration) 560
- vlan (VLAN configuration) 565
- vlan access-map 571
- vlan database 573
- vlan filter 577
- Switch# vmps reconfirm 578
- vmps retry 580
- Switch(config)# vmps retry 7 580
- vmps server 582
- vtp (global configuration) 583
- vtp (VLAN configuration) 587
- Commands 591
- • d—directory 597
- • r—readable 597
- • w—writable 597
- • x—executable 597
- [-test 601
- Debug Commands 617
- • MAC address registry calls 695
- Show Platform Commands 697
Related products and manuals for Network switches Cisco 3020 - Cisco Catalyst Blade Switch
Network switches Cisco IGX 8 User Manual
(16 pages)
(16 pages)
Network switches Cisco Multiband Swivel-Mount Dipole Antenna AIR-ANTM2050D-R Installation Guide
(84 pages)
(84 pages)
Network switches Cisco EZXS16W User's Guide
(10 pages)
(10 pages)
Network switches Cisco 11506 User Manual
(8 pages)
(8 pages)
Network switches Cisco 3524-PWR - Catalyst XL Enterprise Edition Switch Installation Guide
(144 pages)
(144 pages)
Network switches Cisco ONS 15530 Specifications
(148 pages)
(148 pages)
© 2020, manymanuals.com. All rights reserved. | 0.073 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals