Home » D-Link Manuals » Wireless » D-Link DGS-1510 » Manual Viewer

D-Link DGS-1510 Emulator - Page 669

Parameters, Default, Command Mode, Command Default Level, Usage Guideline, Example, spanning-tree

Add to My Manuals
Save this manual to your list of manuals

Page 669 highlights

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide spanning-tree guard root no spanning-tree guard root Parameters None. Default By default, this option is disabled. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline BPDU guard prevents a port from becoming a root port. This feature is useful for the service provider to prevent external bridges to a core region of the network influencing the spanning tree active topology, possibly because those bridges are not under the full control of the administrator. When a port is guarded from becoming a root port, the port will only play the role as a designated port. If the port receives the configuration BPDU with a higher priority, the port will change to the alternate port, which is in the blocking state. The received superior factor will not participate in the STP computation. The port will listen for BPDUs on the link. If the port times out the received superior BPDU, it will change to the designated port role. When a port changes to the alternate port state, due to the root guard, a system message will be generated. This configuration will take effect for all the spanning-tree versions. Example This example shows how to configure to prevent port 1 from being a root port. Switch# configure terminal Switch(config)# interface eth1/0/1 Switch(config-if)# spanning-tree guard root Switch(config-if)# 69-10 spanning-tree link-type This command is used to configure a link-type for a port. Use the no form of this command to revert to the default setting. spanning-tree link-type {point-to-point | shared} no spanning-tree link-type Parameters point-to-point shared Specifies that the port's link type is point-to-point. Specifies that the port's link type is a shared media connection. Default The link type is automatically derived from the duplex setting unless explicitly configuring the link type. Command Mode Interface Configuration Mode. 665

Section	Page
1. Introduction	5
Audience	5
Other Documentation	5
Conventions	5
Notes, Notices, and Cautions	5
Connecting to the Console Port	6
Command Descriptions	6
Command Modes	6
User EXEC Mode at Basic User Level	8
Privileged EXEC Mode at Operator Level	8
Privileged EXEC Mode at Administrator Level	8
Global Configuration Mode	8
Interface Configuration Mode	8
Creating a User Account	8
Interface Notation	10
Error Messages	10
Editing Features	11
Display Result Output Modifiers	11
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	16
2-4 configure terminal	16
Parameters	17
Default	17
Command Mode	17
Command Default Level	17
Usage Guideline	17
Example	17
2-5 login (EXEC)	17
Parameters	17
Default	17
Command Mode	17
Command Default Level	17
Usage Guideline	17
Example	17
2-6 login (Line)	18
Parameters	18
Default	18
Command Mode	18
Command Default Level	18
Usage Guideline	18
Example	18
2-7 logout	19
Parameters	19
Default	19
Command Mode	19
Command Default Level	19
Usage Guideline	19
Example	19
2-8 end	20
Parameters	20
Default	20
Command Mode	20
Command Default Level	20
Usage Guideline	20
Example	20
2-9 exit	20
Parameters	20
Default	20
Command Mode	20
Command Default Level	20
Usage Guideline	21
Example	21
2-10 show history	21
Parameters	21
Default	21
Command Mode	21
Command Default Level	21
Usage Guideline	21
Example	21
2-11 show environment	21
Parameters	22
Default	22
Command Mode	22
Command Default Level	22
Usage Guideline	22
Example	22
Display Parameters	22
2-12 show unit	22
Parameters	23
Default	23
Command Mode	23
Command Default Level	23
Usage Guideline	23
Example	23
2-13 show cpu utilization	23
Parameters	23
Default	23
Command Mode	23
Command Default Level	23
Usage Guideline	24
Example	24
2-14 show version	24
Parameters	24
Default	24
Command Mode	24
Command Default Level	24
Usage Guideline	24
Example	24
2-15 snmp-server enable traps environment	25
Parameters	25
Default	25
Command Mode	25
Command Default Level	25
Usage Guideline	25
Example	25
2-16 environment temperature threshold	25
Parameters	25
Default	26
Command Mode	26
Command Default Level	26
Usage Guideline	26
Example	26
2-17 privilege	26
Parameters	26
Default	26
Command Mode	26
Command Default Level	26
Usage Guideline	27
Example	27
2-18 show privilege	27
Parameters	27
Default	27
Command Mode	27
Command Default Level	27
Usage Guideline	27
Example	27
3. 802.1X Commands	28
3-1 clear dot1x counters	28
Parameters	28
Default	28
Command Mode	28
Command Default Level	28
Usage Guideline	28
Example	28
3-2 dot1x control-direction	28
Parameters	28
Default	29
Command Mode	29
Command Default Level	29
Usage Guideline	29
Example	29
3-3 dot1x default	29
Parameters	29
Default	29
Command Mode	29
Command Default Level	29
Usage Guideline	30
Example	30
3-4 dot1x port-control	30
Parameters	30
Default	30
Command Mode	30
Command Default Level	30
Usage Guideline	30
Example	30
3-5 dot1x forward-pdu	31
Parameters	31
Default	31
Command Mode	31
Command Default Level	31
Usage Guideline	31
Example	31
3-6 dot1x initialize	31
Parameters	31
Default	31
Command Mode	32
Command Default Level	32
Usage Guideline	32
Example	32
3-7 dot1x max-req	32
Parameters	32
Default	32
Command Mode	32
Command Default Level	32
Usage Guideline	32
Example	32
3-8 dot1x pae authenticator	33
Parameters	33
Default	33
Command Mode	33
Command Default Level	33
Usage Guideline	33
Example	33
3-9 dot1x re-authenticate	33
Parameters	33
Default	34
Command Mode	34
Command Default Level	34
Usage Guideline	34
Example	34
3-10 dot1x system-auth-control	34
Parameters	34
Default	34
Command Mode	34
Command Default Level	34
Usage Guideline	34
Example	34
3-11 dot1x timeout	35
Parameters	35
Default	35
Command Mode	35
Command Default Level	35
Usage Guideline	35
Example	35
3-12 show dot1x	35
Parameters	36
Default	36
Command Mode	36
Command Default Level	36
Usage Guideline	36
Example	36
3-13 show dot1x diagnostics	36
Parameters	37
Default	37
Command Mode	37
Command Default Level	37
Usage Guideline	37
Example	37
3-14 show dot1x statistics	37
Parameters	38
Default	38
Command Mode	38
Command Default Level	38
Usage Guideline	38
Example	38
3-15 show dot1x session-statistics	38
Parameters	39
Default	39
Command Mode	39
Command Default Level	39
Usage Guideline	39
Example	39
3-16 snmp-server enable traps dot1x	39
Parameters	39
Default	40
Command Mode	40
Command Default Level	40
Usage Guideline	40
Example	40
4. Access Control List (ACL) Commands	41
4-1 access-list resequence	41
Parameters	41
Default	41
Command Mode	41
Command Default Level	41
Usage Guideline	41
Example	41
4-2 acl-hardware-counter	42
Parameters	42
Default	42
Command Mode	43
Command Default Level	43
Usage Guideline	43
Example	43
4-3 action	43
Parameters	43
Default	43
Command Mode	43
Command Default Level	43
Usage Guideline	43
Example	43
4-4 clear acl-hardware-counter	44
Parameters	44
Default	44
Command Mode	44
Command Default Level	44
Usage Guideline	44
Example	44
4-5 expert access-group	44
Parameters	45
Default	45
Command Mode	45
Command Default Level	45
Usage Guideline	45
Example	45
4-6 expert access-list	45
Parameters	45
Default	46
Command Mode	46
Command Default Level	46
Usage Guideline	46
Example	46
4-7 ip access-group	46
Parameters	46
Default	46
Command Mode	46
Command Default Level	47
Usage Guideline	47
Example	47
4-8 ip access-list	47
Parameters	47
Default	47
Command Mode	47
Command Default Level	47
Usage Guideline	47
Example	48
4-9 ipv6 access-group	48
Parameters	48
Default	48
Command Mode	48
Command Default Level	48
Usage Guideline	48
Example	48
4-10 ipv6 access-list	49
Parameters	49
Default	49
Command Mode	49
Command Default Level	49
Usage Guideline	49
Example	49
4-11 list-remark	50
Parameters	50
Default	50
Command Mode	50
Command Default Level	50
Usage Guideline	50
Example	50
4-12 mac access-group	50
Parameters	51
Default	51
Command Mode	51
Command Default Level	51
Usage Guideline	51
Example	51
4-13 mac access-list	51
Parameters	51
Default	52
Command Mode	52
Command Default Level	52
Usage Guideline	52
Example	52
4-14 match ip address	52
Parameters	52
Default	52
Command Mode	52
Command Default Level	52
Usage Guideline	52
Example	52
4-15 match ipv6 address	53
Parameters	53
Default	53
Command Mode	53
Command Default Level	53
Usage Guideline	53
Example	53
4-16 match mac address	53
Parameters	54
Default	54
Command Mode	54
Command Default Level	54
Usage Guideline	54
Example	54
4-17 permit \| deny (expert access-list)	54
Parameters	55
Default	56
Command Mode	56
Command Default Level	56
Usage Guideline	56
Example	56
4-18 permit \| deny (ip access-list)	57
Parameters	57
Default	59
Command Mode	59
Command Default Level	59
Usage Guideline	59
Example	59
4-19 permit \| deny (ipv6 access-list)	59
Parameters	60
Default	61
Command Mode	61
Command Default Level	61
Usage Guideline	61
Example	62
4-20 permit \| deny (mac access-list)	62
Parameters	62
Default	63
Command Mode	63
Command Default Level	63
Usage Guideline	63
Example	63
4-21 show access-group	63
Parameters	63
Default	64
Command Mode	64
Command Default Level	64
Usage Guideline	64
Example	64
4-22 show access-list	64
Parameters	64
Default	64
Command Mode	64
Command Default Level	64
Usage Guideline	64
Example	65
4-23 show vlan access-map	65
Parameters	65
Default	65
Command Mode	66
Command Default Level	66
Usage Guideline	66
Example	66
4-24 show vlan filter	66
Parameters	66
Default	67
Command Mode	67
Command Default Level	67
Usage Guideline	67
Example	67
4-25 vlan access-map	67
Parameters	67
Default	67
Command Mode	67
Command Default Level	68
Usage Guideline	68
Example	68
4-26 vlan filter	68
Parameters	68
Default	68
Command Mode	68
Command Default Level	68
Usage Guideline	68
Example	68
5. Access Management Commands	70
5-1 access class	70
Parameters	70
Default	70
Command Mode	70
Command Default Level	70
Usage Guideline	70
Example	70
5-2 banner login	70
Parameters	70
Default	71
Command Mode	71
Command Default Level	71
Usage Guideline	71
Example	71
5-3 do	71
Parameters	71
Default	71
Command Mode	72
Command Default Level	72
Usage Guideline	72
Example	72
5-4 prompt	73
Parameters	73
Default	73
Command Mode	73
Command Default Level	73
Usage Guideline	74
Example	74
5-5 enable password	74
Parameters	74
Default	74
Command Mode	74
Command Default Level	75
Usage Guideline	75
Example	75
5-6 ip http server	75
Parameters	75
Default	75
Command Mode	75
Command Default Level	75
Usage Guideline	75
Example	75
5-7 ip http secure-server	76
Parameters	76
Default	76
Command Mode	76
Command Default Level	76
Usage Guideline	76
Example	76
5-8 ip {http \| https} access-class	76
Parameters	76
Default	76
Command Mode	77
Command Default Level	77
Usage Guideline	77
Example	77
5-9 ip http service-port	77

Match case Limit results 1 per page

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide

665

spanning-tree guard root

no spanning-tree guard root

Parameters

None.

Default

By default, this option is disabled.

Command Mode

Interface Configuration Mode.

Command Default Level

Level: 12.

Usage Guideline

BPDU guard prevents a port from becoming a root port. This feature is useful for the service provider

to prevent external bridges to a core region of the network influencing the spanning tree active

topology, possibly because those bridges are not under the full control of the administrator.

When a port is guarded from becoming a root port, the port will only play the role as a designated

port. If the port receives the configuration BPDU with a higher priority, the port will change to the

alternate port, which is in the blocking state. The received superior factor will not participate in the

STP computation. The port will listen for BPDUs on the link. If the port times out the received superior

BPDU, it will change to the designated port role.

When a port changes to the alternate port state, due to the root guard, a system message will be

generated. This configuration will take effect for all the spanning-tree versions.

Example

This example shows how to configure to prevent port 1 from being a root port.

Switch# configure terminal

Switch(config)# interface eth1/0/1

Switch(config-if)# spanning-tree guard root

Switch(config-if)#

69-10

spanning-tree link-type

This command is used to configure a link-type for a port. Use the

form of this command to revert to

the default setting.

spanning-tree link-type {point-to-point | shared}

no spanning-tree link-type

Parameters

point-to-point

Specifies that the port’s link type is point-to-point.

shared

Specifies that the port’s link type is a shared media connection.

Default

The link type is automatically derived from the duplex setting unless explicitly configuring the link type.

Command Mode

Interface Configuration Mode.