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speed auto-downgrade

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DGS-3630 Layer 3 Stackable Managed Switch CLI Reference Guide Default The speed is automatic for 100BASE-TX, 1000BASE-T and 10GBASE-T interfaces. The speed is fixed to 100Mbps for 100BASE-FX interfaces. The speed is fixed to 1000Mbps for 1000BASE-SX/LX interfaces. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline If the specified speed is not supported by the hardware, error messages will be returned. For the 100BASE-FX modules, the speed is always fixed at 100Mbps, full duplex, and no-negotiation. No command can change the settings. For the 1000BASE-SX/LX modules, the speed is always fixed to 1000Mbps and full duplex, and only the speed 1000 and speed auto commands are valid. For a 1000BASE-T connection, if the speed is specified to 1000Mbps, the port must be configured as master or slave. For a 10GBASE-T connection, if the speed is specified to 10Gbps, the port must be configured as master or slave. Auto-negotiation will be enabled when the speed parameter is set to auto. The advertised capability will be full duplex mode combined with the specified speeds. The half-duplex mode is not supported on the Switch. For 10GBASE-R connections, if auto-negotiation is enabled, the system will automatically configure the speed (1000M or 10G) according to the type of SFP/SFP+. Example This example shows how to configure port 1 to only auto-negotiate to 10Mbps or 100Mbps. Switch# configure terminal Switch(config)# interface eth1/0/1 Switch(config-if)# speed auto 10,100 Switch(config-if)# 33-6 speed auto-downgrade This command is used to enable automatically downgrading advertised speed in case a link cannot be established at the available speed. Use the no form of this command to disable it. speed auto-downgrade no speed auto-downgrade Parameters None. Default By default, this option is disabled. Command Mode Interface Configuration Mode. 316

Section	Page
Table of Contents	2
1. Introduction	3
Audience	3
Other Documentation	3
Conventions	3
Notes, Notices, and Cautions	3
Command Descriptions	4
Command Modes	4
User EXEC Mode at Basic User Level	5
Privileged EXEC Mode at Operator Level	5
Privileged EXEC Mode at Administrator Level	6
Global Configuration Mode	6
Interface Configuration Mode	6
Creating a User Account	6
Interface Notation	7
Error Messages	8
Editing Features	8
Display Result Output Modifiers	9
2. Basic CLI Commands	11
2-1 help	11
Parameters	11
Default	11
Command Mode	11
Command Default Level	11
Usage Guideline	11
Example	11
2-2 enable	12
Parameters	12
Default	12
Command Mode	13
Command Default Level	13
Usage Guideline	13
Example	13
2-3 disable	13
Parameters	13
Default	13
Command Mode	13
Command Default Level	13
Usage Guideline	13
Example	14
2-4 configure terminal	14
Parameters	14
Default	14
Command Mode	14
Command Default Level	14
Usage Guideline	14
Example	14
2-5 login (EXEC)	14
Parameters	14
Default	15
Command Mode	15
Command Default Level	15
Usage Guideline	15
Example	15
2-6 login (Line)	15
Parameters	15
Default	15
Command Mode	15
Command Default Level	15
Usage Guideline	16
Example	16
2-7 logout	17
Parameters	17
Default	17
Command Mode	17
Command Default Level	17
Usage Guideline	17
Example	17
2-8 end	17
Parameters	17
Default	17
Command Mode	17
Command Default Level	18
Usage Guideline	18
Example	18
2-9 exit	18
Parameters	18
Default	18
Command Mode	18
Command Default Level	18
Usage Guideline	18
Example	18
2-10 show history	19
Parameters	19
Default	19
Command Mode	19
Command Default Level	19
Usage Guideline	19
Example	19
2-11 password-recovery	19
Parameters	19
Default	20
Command Mode	20
Command Default Level	20
Usage Guideline	20
Example	20
2-12 show environment	20
Parameters	20
Default	21
Command Mode	21
Command Default Level	21
Usage Guideline	21
Example	21
Display Parameters	21
2-13 show unit	21
Parameters	22
Default	22
Command Mode	22
Command Default Level	22
Usage Guideline	22
Example	22
2-14 show cpu utilization	22
Parameters	22
Default	23
Command Mode	23
Command Default Level	23
Usage Guideline	23
Example	23
2-15 show version	23
Parameters	24
Default	24
Command Mode	24
Command Default Level	24
Usage Guideline	24
Example	24
2-16 environment temperature threshold	24
Parameters	24
Default	25
Command Mode	25
Command Default Level	25
Usage Guideline	25
Example	25
2-17 show memory utilization	25
Parameters	25
Default	25
Command Mode	25
Command Default Level	25
Usage Guideline	25
Example	26
2-18 console-usb-timeout (Hybrid Mode Only)	26
Parameters	26
Default	26
Command Mode	26
Command Default Level	27
Usage Guideline	27
Example	27
2-19 console-usb (Hybrid Mode Only)	27
Parameters	27
Default	27
Command Mode	27
Command Default Level	27
Usage Guideline	27
Example	27
2-20 privilege (Hybrid Mode Only)	28
Parameters	28
Default	28
Command Mode	28
Command Default Level	28
Usage Guideline	28
Example	28
2-21 show privilege	28
Parameters	28
Default	29
Command Mode	29
Command Default Level	29
Usage Guideline	29
Example	29
3. Access Management Commands	30
3-1 banner login	30
Parameters	30
Default	30
Command Mode	30
Command Default Level	30
Usage Guideline	30
Example	30
3-2 do	31
Parameters	31
Default	31
Command Mode	31
Command Default Level	31
Usage Guideline	31
Example	31
3-3 prompt	31
Parameters	32
Default	32
Command Mode	32
Command Default Level	32
Usage Guideline	32
Example	32
3-4 enable password	32
Parameters	32
Default	33
Command Mode	33
Command Default Level	33
Usage Guideline	33
Example	33
3-5 ip http server (Hybrid Mode Only)	33
Parameters	33
Default	33
Command Mode	33
Command Default Level	33
Usage Guideline	34
Example	34
3-6 ip http secure-server (Hybrid Mode Only)	34
Parameters	34
Default	34
Command Mode	34
Command Default Level	34
Usage Guideline	34
Example	34
3-7 ip http secure-server ssl-service-policy	34
Parameters	35
Default	35
Command Mode	35
Command Default Level	35
Usage Guideline	35
Example	35
3-8 ip http service-port (Hybrid Mode Only)	35
Parameters	35
Default	35
Command Mode	35
Command Default Level	35
Usage Guideline	36
Example	36
3-9 ip http timeout-policy idle (Hybrid Mode Only)	36
Parameters	36
Default	36
Command Mode	36
Command Default Level	36
Usage Guideline	36
Example	36
3-10 ip telnet server	36
Parameters	37
Default	37
Command Mode	37
Command Default Level	37
Usage Guideline	37
Example	37
3-11 ip telnet service port	37
Parameters	37
Default	37
Command Mode	37
Command Default Level	37
Usage Guideline	37
Example	38
3-12 line	38
Parameters	38
Default	38
Command Mode	38
Command Default Level	38
Usage Guideline	38
Example	38
3-13 service password-recovery	38
Parameters	38
Default	39
Command Mode	39
Command Default Level	39
Usage Guideline	39
Example	39
3-14 service password-encryption	39
Parameters	39
Default	39
Command Mode	39
Command Default Level	39
Usage Guideline	39
Example	40
3-15 show terminal	40
Parameters	40
Default	40
Command Mode	40
Command Default Level	40
Usage Guideline	40
Example	40
3-16 show ip telnet server (Hybrid Mode Only)	41
Parameters	41
Default	41
Command Mode	41
Command Default Level	41
Usage Guideline	41
Example	41
3-17 show ip http server (Hybrid Mode Only)	41
Parameters	41
Default	41
Command Mode	41
Command Default Level	41
Usage Guideline	42
Example	42
3-18 show ip http secure-server	42
Parameters	42
Default	42
Command Mode	42
Command Default Level	42
Usage Guideline	42
Example	42
3-19 show password-recovery	42
Parameters	42
Default	43
Command Mode	43
Command Default Level	43
Usage Guideline	43
Example	43
3-20 show users	43
Parameters	43
Default	43
Command Mode	43
Command Default Level	43
Usage Guideline	43
Example	44
3-21 telnet (Hybrid Mode Only)	44
Parameters	44
Default	44
Command Mode	44
Command Default Level	44
Usage Guideline	44
Example	45
3-22 terminal length	45
Parameters	45
Default	46
Command Mode	46
Command Default Level	46
Usage Guideline	46
Example	46
3-23 terminal speed	46
Parameters	46
Default	46
Command Mode	47
Command Default Level	47
Usage Guideline	47
Example	47
3-24 session-timeout	47
Parameters	47
Default	47
Command Mode	47
Command Default Level	47
Usage Guideline	47
Example	48
3-25 terminal width	48
Parameters	48
Default	48
Command Mode	48
Command Default Level	48
Usage Guideline	48
Example	49
3-26 username	49
Parameters	49
Default	49
Command Mode	50
Command Default Level	50
Usage Guideline	50
Example	50
3-27 password	50
Parameters	50
Default	51
Command Mode	51
Command Default Level	51
Usage Guideline	51
Example	51
3-28 clear line	51
Parameters	51
Default	51
Command Mode	51
Command Default Level	51
Usage Guideline	51
Example	52
3-29 banner exec	52
Parameters	52
Default	52
Command Mode	52
Command Default Level	52
Usage Guideline	52
Example	52
3-30 exec-banner	53
Parameters	53
Default	53
Command Mode	53
Command Default Level	53
Usage Guideline	53
Example	53
3-31 outgoing-session-timeout (Hybrid Mode Only)	53
Parameters	53
Default	53
Command Mode	53
Command Default Level	54
Usage Guideline	54
Example	54
3-32 terminal monitor	54
Parameters	54
Default	54
Command Mode	54
Command Default Level	54
Usage Guideline	54
Example	55
4. Alias Commands (Hybrid Mode Only)	56
4-1 alias	56
Parameters	56
Default	56
Command Mode	56
Command Default Level	56
Usage Guideline	56
Example	56
4-2 show aliases	57
Parameters	57
Default	57
Command Mode	57
Command Default Level	57
Usage Guideline	57
Example	57
5. Authentication, Authorization, and Accounting (AAA) Commands	58
5-1 aaa accounting commands	58
Parameters	58
Default	58
Command Mode	58
Command Default Level	58
Usage Guideline	58
Example	58
5-2 aaa accounting exec	59
Parameters	59
Default	59
Command Mode	59
Command Default Level	59
Usage Guideline	59
Example	59
5-3 aaa accounting network (Hybrid Mode Only)	60
Parameters	60
Default	60
Command Mode	60
Command Default Level	60
Usage Guideline	60
Example	60
5-4 aaa accounting system	61
Parameters	61
Default	61
Command Mode	61
Command Default Level	61
Usage Guideline	61
Example	61
5-5 aaa authentication enable	62
Parameters	62
Default	62
Command Mode	62
Command Default Level	62
Usage Guideline	62
Example	62
5-6 aaa authentication login	62
Parameters	63
Default	63
Command Mode	63
Command Default Level	63
Usage Guideline	63
Example	63
5-7 aaa group server radius	64
Parameters	64
Default	64
Command Mode	64
Command Default Level	64
Usage Guideline	64
Example	64
5-8 aaa group server tacacs+	64
Parameters	64
Default	65
Command Mode	65
Command Default Level	65
Usage Guideline	65
Example	65
5-9 aaa new-model	65
Parameters	65
Default	65
Command Mode	65
Command Default Level	65
Usage Guideline	65
Example	66
5-10 accounting commands	66
Parameters	66
Default	66
Command Mode	66
Command Default Level	66
Usage Guideline	66
Example	66
5-11 accounting exec	67
Parameters	67
Default	67
Command Mode	67
Command Default Level	67
Usage Guideline	67
Example	67
5-12 clear aaa counters servers	67
Parameters	67
Default	68
Command Mode	68
Command Default Level	68
Usage Guideline	68
Example	68
5-13 ip http authentication aaa login-authentication (Hybrid Mode Only)	68
Parameters	68
Default	68
Command Mode	69
Command Default Level	69
Usage Guideline	69
Example	69
5-14 ip http accounting exec (Hybrid Mode Only)	69