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spanning-tree timers

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disable DGS-3630 Layer 3 Stackable Managed Switch CLI Reference Guide Specifies to disable the STP's global state. Default By default, this option is disabled. Command Mode Global Configuration Mode. Command Default Level Level: 12. Usage Guideline Use this command in the global configuration mode to enable the global spanning-tree function. Example This example shows how to enable the spanning-tree function. Switch# configure terminal Switch(config)# spanning-tree global state enable Switch(config)# 117-13 spanning-tree (timers) This command is used to configure the Spanning Tree timer value. Use the no form of this command to revert to the default settings. spanning-tree {hello-time SECONDS | forward-time SECONDS | max-age SECONDS} no spanning-tree {hello-time | forward-time | max-age} Parameters hello-time SECONDS forward-time SECONDS max-age SECONDS Specifies the interval that a designated port will wait between the periodic transmissions of each configuration message. The range is from 1 to 2 seconds. Specifies the forward delay time used by STP to transition from the listening to the learning states and learning to forwarding states. The range is from 4 to 30 seconds. Specifies the maximum message age of BPDU. The range is from 6 to 40 seconds. Default The default value of the hello-time is 2 seconds. The default value of the forward-time is 15 seconds. The default value of the max-age is 20 seconds. Command Mode Global Configuration Mode. 1495

Section	Page
Table of Contents	2
1. Introduction	6
Audience	6
Other Documentation	6
Conventions	6
Notes, Notices, and Cautions	6
Command Descriptions	7
Command Modes	7
User EXEC Mode at Basic User Level	8
Privileged EXEC Mode at Advanced User Level	8
Privileged EXEC Mode at Power User Level	8
Privileged EXEC Mode at Operator Level	9
Privileged EXEC Mode at Administrator Level	9
Global Configuration Mode	9
Interface Configuration Mode	9
Creating a User Account	9
Interface Notation	10
Error Messages	11
Editing Features	11
Display Result Output Modifiers	12
2. Basic CLI Commands	14
2-1 help	14
Parameters	14
Default	14
Command Mode	14
Command Default Level	14
Usage Guideline	14
Example	14
2-2 enable	15
Parameters	15
Default	15
Command Mode	16
Command Default Level	16
Usage Guideline	16
Example	16
2-3 disable	16
Parameters	16
Default	16
Command Mode	16
Command Default Level	16
Usage Guideline	16
Example	17
2-4 configure terminal	17
Parameters	17
Default	17
Command Mode	17
Command Default Level	17
Usage Guideline	17
Example	17
2-5 login (EXEC)	17
Parameters	17
Default	18
Command Mode	18
Command Default Level	18
Usage Guideline	18
Example	18
2-6 login (Line)	18
Parameters	18
Default	18
Command Mode	18
Command Default Level	18
Usage Guideline	19
Example	19
2-7 logout	20
Parameters	20
Default	20
Command Mode	20
Command Default Level	20
Usage Guideline	20
Example	20
2-8 end	20
Parameters	20
Default	20
Command Mode	20
Command Default Level	21
Usage Guideline	21
Example	21
2-9 exit	21
Parameters	21
Default	21
Command Mode	21
Command Default Level	21
Usage Guideline	21
Example	21
2-10 show history	22
Parameters	22
Default	22
Command Mode	22
Command Default Level	22
Usage Guideline	22
Example	22
2-11 password-recovery	22
Parameters	22
Default	23
Command Mode	23
Command Default Level	23
Usage Guideline	23
Example	23
2-12 show environment	23
Parameters	23
Default	24
Command Mode	24
Command Default Level	24
Usage Guideline	24
Example	24
Display Parameters	24
2-13 show unit	24
Parameters	25
Default	25
Command Mode	25
Command Default Level	25
Usage Guideline	25
Example	25
2-14 show cpu utilization	25
Parameters	25
Default	26
Command Mode	26
Command Default Level	26
Usage Guideline	26
Example	26
2-15 show version	26
Parameters	27
Default	27
Command Mode	27
Command Default Level	27
Usage Guideline	27
Example	27
2-16 snmp-server enable traps environment	27
Parameters	27
Default	28
Command Mode	28
Command Default Level	28
Usage Guideline	28
Example	28
2-17 environment temperature threshold	28
Parameters	28
Default	28
Command Mode	28
Command Default Level	28
Usage Guideline	29
Example	29
2-18 show memory utilization	29
Parameters	29
Default	29
Command Mode	29
Command Default Level	29
Usage Guideline	29
Example	30
2-19 console-usb-timeout	30
Parameters	30
Default	30
Command Mode	30
Command Default Level	30
Usage Guideline	30
Example	31
2-20 console-usb	31
Parameters	31
Default	31
Command Mode	31
Command Default Level	31
Usage Guideline	31
Example	31
2-21 privilege	31
Parameters	32
Default	32
Command Mode	32
Command Default Level	32
Usage Guideline	32
Example	32
2-22 show privilege	32
Parameters	32
Default	32
Command Mode	32
Command Default Level	32
Usage Guideline	33
Example	33
3. 802.1X Commands	34
3-1 clear dot1x counters	34
Parameters	34
Default	34
Command Mode	34
Command Default Level	34
Usage Guideline	34
Example	34
3-2 dot1x control-direction	34
Parameters	34
Default	35
Command Mode	35
Command Default Level	35
Usage Guideline	35
Example	35
3-3 dot1x default	35
Parameters	35
Default	35
Command Mode	36
Command Default Level	36
Usage Guideline	36
Example	36
3-4 dot1x port-control	36
Parameters	36
Default	36
Command Mode	36
Command Default Level	36
Usage Guideline	36
Example	37
3-5 dot1x forward-pdu	37
Parameters	37
Default	37
Command Mode	37
Command Default Level	37
Usage Guideline	37
Example	37
3-6 dot1x initialize	37
Parameters	38
Default	38
Command Mode	38
Command Default Level	38
Usage Guideline	38
Example	38
3-7 dot1x max-req	38
Parameters	38
Default	38
Command Mode	39
Command Default Level	39
Usage Guideline	39
Example	39
3-8 dot1x pae authenticator	39
Parameters	39
Default	39
Command Mode	39
Command Default Level	39
Usage Guideline	39
Example	40
3-9 dot1x re-authenticate	40
Parameters	40
Default	40
Command Mode	40
Command Default Level	40
Usage Guideline	40
Example	41
3-10 dot1x system-auth-control	41
Parameters	41
Default	41
Command Mode	41
Command Default Level	41
Usage Guideline	41
Example	41
3-11 dot1x timeout	41
Parameters	42
Default	42
Command Mode	42
Command Default Level	42
Usage Guideline	42
Example	42
3-12 show dot1x	42
Parameters	42
Default	43
Command Mode	43
Command Default Level	43
Usage Guideline	43
Example	43
3-13 show dot1x diagnostics	43
Parameters	44
Default	44
Command Mode	44
Command Default Level	44
Usage Guideline	44
Example	44
3-14 show dot1x statistics	45
Parameters	45
Default	45
Command Mode	45
Command Default Level	45
Usage Guideline	45
Example	45
3-15 show dot1x session-statistics	46
Parameters	46
Default	46
Command Mode	46
Command Default Level	46
Usage Guideline	46
Example	46
3-16 snmp-server enable traps dot1x	46
Parameters	47
Default	47
Command Mode	47
Command Default Level	47
Usage Guideline	47
Example	47
4. Access Control List (ACL) Commands	48
4-1 access-list resequence	48
Parameters	48
Default	48
Command Mode	48
Command Default Level	48
Usage Guideline	48
Example	49
4-2 acl-hardware-counter	49
Parameters	49
Default	50
Command Mode	50
Command Default Level	50
Usage Guideline	50
Example	50
4-3 action	50
Parameters	50
Default	50
Command Mode	50
Command Default Level	50
Usage Guideline	51
Example	51
4-4 clear acl-hardware-counter	51
Parameters	51
Default	51
Command Mode	51
Command Default Level	51
Usage Guideline	52
Example	52
4-5 expert access-group	52
Parameters	52
Default	52
Command Mode	52
Command Default Level	52
Usage Guideline	52
Example	53
4-6 expert access-list	53
Parameters	53
Default	53
Command Mode	53
Command Default Level	53
Usage Guideline	53
Example	53
4-7 ip access-group	54
Parameters	54
Default	54
Command Mode	54
Command Default Level	54
Usage Guideline	54
Example	54
4-8 ip access-list	54
Parameters	55
Default	55
Command Mode	55
Command Default Level	55
Usage Guideline	55
Example	55
4-9 ipv6 access-group	55
Parameters	56
Default	56
Command Mode	56
Command Default Level	56
Usage Guideline	56
Example	56
4-10 ipv6 access-list	56
Parameters	56
Default	57
Command Mode	57
Command Default Level	57
Usage Guideline	57
Example	57
4-11 list-remark	57
Parameters	57
Default	57
Command Mode	58
Command Default Level	58
Usage Guideline	58
Example	58
4-12 mac access-group	58
Parameters	58
Default	58
Command Mode	58
Command Default Level	59
Usage Guideline	59
Example	59
4-13 mac access-list	59
Parameters	59
Default	59
Command Mode	59
Command Default Level	59
Usage Guideline	59
Example	60
4-14 match ip address	60
Parameters	60
Default	60
Command Mode	60
Command Default Level	60
Usage Guideline	60
Example	61
4-15 match ipv6 address	61
Parameters	61
Default	61
Command Mode	61
Command Default Level	61
Usage Guideline	61
Example	62
4-16 match mac address	62
Parameters	62
Default	62
Command Mode	62
Command Default Level	62
Usage Guideline	62
Example	63
4-17 permit \| deny \| deny-cpu (expert access-list)	63
Parameters	63
Default	65
Command Mode	65
Command Default Level	65
Usage Guideline	65
Example	66
4-18 permit \| deny \| deny-cpu (ip access-list)	66
Parameters	66
Default	68
Command Mode	68
Command Default Level	68
Usage Guideline	68
Example	68
4-19 permit \| deny \| deny-cpu (ipv6 access-list)	69
Parameters	69
Default	70
Command Mode	70
Command Default Level	70
Usage Guideline	71
Example	71
4-20 permit \| deny \| deny-cpu (mac access-list)	71
Parameters	71
Default	72
Command Mode	72
Command Default Level	72
Usage Guideline	72
Example	73
4-21 show access-group	73
Parameters	73
Default	73
Command Mode	73
Command Default Level	73
Usage Guideline	73
Example	73
4-22 show access-list	73
Parameters	74
Default	74
Command Mode	74
Command Default Level	74
Usage Guideline	74
Example	74
4-23 show vlan access-map	75
Parameters	75
Default	75
Command Mode	75
Command Default Level	75
Usage Guideline	75
Example	76
4-24 show vlan filter	76
Parameters	76
Default	76
Command Mode	76
Command Default Level	76
Usage Guideline	77
Example	77
4-25 vlan access-map	77
Parameters	77
Default	77
Command Mode	77
Command Default Level	77
Usage Guideline	77
Example	78
4-26 vlan filter	78
Parameters	78
Default	78
Command Mode	78
Command Default Level	78
Usage Guideline	78
Example	78
5. Access Management Commands	79
5-1 access class	79
Parameters	79
Default	79
Command Mode	79
Command Default Level	79
Usage Guideline	79
Example	79
5-2 banner login	79
Parameters	80
Default	80
Command Mode	80
Command Default Level	80
Usage Guideline	80
Example	80
5-3 do	80
Parameters	81
Default	81
Command Mode	81
Command Default Level	81
Usage Guideline	81
Example	81
5-4 prompt	81
Parameters	81
Default	81
Command Mode	82
Command Default Level	82
Usage Guideline	82