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login concurrent-session

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login concurrent-session Configures the limit of concurrent sessions for each user on console and virtual terminal lines. Syntax login concurrent-session {limit number-of-sessions | clear-line enable} no login concurrent-session {limit number-of-sessions | clear-line enable} Parameters limit number-ofsessions Sets the number of concurrent sessions that any user can have on console and virtual terminal lines. The range is from 1 to 12 (10 VTY lines, one console, and one AUX line). clear-line enable Enables you to clear your existing sessions. Defaults Not configured. You can use all the available sessions. Command Modes CONFIGURATION Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide. Version Description 9.10(0.1) 9.10(0.0) 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.8(0.0) Introduced on the S6010-ON and S4048T-ON. Introduced on the S3148. Introduced on the S6100-ON. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S4810, S4820, S5000, S6000, S6000-ON, and Z9500. Usage Information Example You must have either the System Administrator or Security Administrator privileges to configure login concurrent-session limit or to enable clear-line. To limit the number of concurrent sessions that any user can have on console, auxiliary, and virtual terminal lines, use the login concurrent-session limit number-of-sessions command. If the login concurrent-session clear-line enable command is configured, you are provided with an option to clear any of your existing sessions after a successful login authentication. When you reach the maximum concurrent session limit, you can still log in by clearing any of your existing sessions. The following example shows how to limit the number of concurrent sessions that any user can have to four: DellEMC(conf)# login concurrent-session limit 4 DellEMC(conf)# The following example shows how to use the login concurrent-session clear-line enable command. DellEMC(conf)# login concurrent-session clear-line enable DellEMC(conf)# When you try to log in, the following message appears with all your existing concurrent sessions, providing an option to close any one of the existing sessions: $ telnet 10.11.178.14 Trying 10.11.178.14... Connected to 10.11.178.14. 88 Control and Monitoring

Section	Page
Dell EMC Networking Command-Line Reference Guide for the C9010 Series Version 9.14.2.8	3
About this Guide	44
Objectives	44
Audience	44
Conventions	44
Information Icons	45
CLI Basics	46
Accessing the Command Line	46
Multiple Configuration Users	46
Obtaining Help	47
Navigating the CLI	49
Using the Keyword no Command	49
Filtering show Commands	49
Command Modes	50
Control and Monitoring	59
asf-mode	60
banner exec	61
banner login	62
banner motd	63
cam-acl	64
cam-audit linecard	66
clear alarms	67
clear average-power	67
clear line	68
configure	69
debug cpu-traffic-stats	69
debug ftpserver	70
disable	71
do	71
enable	72
enable cpu-clock-monitor	73
enable optic-info-update interval	74
end	74
exec-timeout	75
exit	76
ftp-server enable	77
ftp-server topdir	78
ftp-server username	78
hostname	79
ip ftp password	80
ip ftp source-interface	81
ip ftp username	82
ip http source-interface	83
ip telnet server enable	83
ip telnet source-interface	84
ip tftp source-interface	85
line	86
logging coredump server	87
login concurrent-session	88
login statistics	89
ping	91
power on	93
reload	94
send	94
service timestamps	95
show alarms	96
show asf	99
show chassis	100
show command-history	101
show console lp	102
show cpu-traffic-stats	103
show cpu-interface-stats	104
show debugging	106
show environment	107
show inventory	109
show linecard	111
show login statistics	113
show memory	116
show processes cpu	117
show processes ipc	121
show processes ipc flow-control	124
show processes memory	126
show reset-reason	132
show rpm	134
show software ifm	136
show system linecard	137
show tech-support	138
show util-threshold cpu	150
show util-threshold memory	151
show version	151
telnet	154
terminal length	156
traceroute	156
undebug all	158
upload trace-log	159
util-threshold cpu	160
util-threshold memory	161
virtual-ip	162
write	163
File Management	165
boot system	165
cd	166
copy	167
delete	170
dir	171
format flash	173
mkdir	174
mount nfs	174
pwd	175
rename	175
restore factory-defaults	176
rmdir	177
show boot bmp	178
show boot system	178
show bootvar	179
show file	180
show file-systems	181
show os-version	183
show running-config	186
show startup-config	189
upgrade	190
upgrade system-image-os6	192
verify	193
802.1X	195
debug dot1x	196
dot1x auth-fail-vlan	196
dot1x auth-server	197
dot1x auth-type mab-only	198
dot1x authentication (Configuration)	199
dot1x authentication (Interface)	199
dot1x critical-vlan	200
dot1x guest-vlan	201
dot1x host-mode	202
dot1x mac-auth-bypass	203
dot1x max-eap-req	203
dot1x max-supplicants	204
dot1x port-control	205
dot1x profile	205
dot1x quiet-period	206
dot1x reauthentication	207
dot1x reauth-max	207
dot1x server-timeout	208
dot1x static-mab	209
dot1x supplicant-timeout	210
dot1x tx-period	211
mac	211
show dot1x cos-mapping interface	212
show dot1x interface	213
show dot1x profile	216
Access Control Lists (ACL)	217
Commands Common to all ACL Types	217
remark	217
show config	219
Common IP ACL Commands	220
clear counters ip access-group	220
ip access-group	221
ipv6 access-group	222
ip control-plane egress-filter	223
show ip accounting access-list	224
Standard IP ACL Commands	225
deny	225
feature acloptimized	226
ip access-list standard	227
permit	228
resequence access-list	229
resequence prefix-list ipv4	230
seq	231
show ip access-lists	233
Extended IP ACL Commands	234
deny	234
deny icmp	236
deny tcp	239
deny udp	241
ip access-list extended	243
permit	244
permit icmp	246
permit tcp	248
permit udp	250
resequence prefix-list ipv4	252
seq	253
ACL VLAN Group Commands	256
acl-vlan-group	256
cam-acl-vlan	256
description (ACL VLAN Group)	257
member vlan (ACL VLAN Group)	258
show acl-vlan-group	258
show cam-acl-vlan	259
show running config acl-vlan-group	260
Common MAC ACL Commands	261
clear counters mac access-group	261
mac control-plane egress-acl	262
mac access-group	262
show mac access-lists	263
show mac accounting access-list	265
Standard MAC ACL Commands	266
deny	266
mac access-list standard	267
permit	268
seq	270
Extended MAC ACL Commands	271
deny	271
mac access-list extended	273
permit	274
seq	276
IP Prefix List Commands	277
clear ip prefix-list	278
deny	278
ip prefix-list	279
permit	280
seq	281
show config	282
show ip prefix-list detail	282
show ip prefix-list summary	283
Route Map Commands	284
continue	284
description	285
match as-path	286
match community	287
match interface	287
match ip address	288
match ip next-hop	289
match ip route-source	290
match metric	291
match origin	292
match route-type	292
match tag	293
route-map	294
set as-path	295
set automatic-tag	296
set comm-list delete	297
set community	298
set level	299
set local-preference	300
set metric	300
set metric-type	301
set next-hop	302
set origin	303
set tag	303
set weight	304
show config	305
show route-map	306
AS-Path Commands	306
ip as-path access-list	307
show ip as-path-access-lists	307
IP Community List Commands	308
ip community-list	308
show ip community-lists	309
Bidirectional Forwarding Detection (BFD)	310
bfd all-neighbors	310
bfd disable	312
bfd enable (Configuration)	312
bfd enable (Interface)	313
bfd interval	313
bfd protocol-liveness	314
ip route bfd	315
ipv6 route bfd	316
ip ospf bfd all-neighbors	317
ipv6 ospf bfd all-neighbors	318
neighbor bfd	319
neighbor bfd disable	319
show bfd neighbors	320
vrrp bfd	322
Border Gateway Protocol	324
BGP IPv4 Commands	324
address-family	324
aggregate-address	325
bgp add-path	326
bgp always-compare-med	327
bgp asnotation	327
bgp bestpath as-path ignore	328
bgp bestpath as-path multipath-relax	329
bgp bestpath med confed	330
bgp bestpath med missing-as-best	330
bgp bestpath router-id ignore	331
bgp client-to-client reflection	331
bgp cluster-id	332
bgp confederation identifier	333
bgp confederation peers	334
bgp dampening	334
bgp default local-preference	336
bgp dmzlink-bw	336
bgp enforce-first-as	337
bgp fast-external-fallover	338
bgp four-octet-as-support	338
bgp graceful-restart	339
bgp log-neighbor-changes	340
bgp non-deterministic-med	340
bgp outbound-optimization	341
bgp recursive-bgp-next-hop	342
bgp regex-eval-optz-disable	342
bgp router-id	343
bgp soft-reconfig-backup	344
capture bgp-pdu neighbor	345
capture bgp-pdu max-buffer-size	345
clear ip bgp	346
clear ip bgp dampening	347
clear ip bgp flap-statistics	348
clear ip bgp peer-group	350
debug ip bgp	351
debug ip bgp dampening	352
debug ip bgp events	353
debug ip bgp keepalives	354
debug ip bgp notifications	355
debug ip bgp soft-reconfiguration	355
debug ip bgp updates	356
default-metric	357
deny bandwidth	358
description	358
distance bgp	359
maximum-paths	360
neighbor activate	361
neighbor add-path	361
neighbor advertisement-interval	362
neighbor advertisement-start	363
neighbor allowas-in	363
neighbor default-originate	364
neighbor description	365
neighbor distribute-list	366
neighbor dmzlink-bw	366
neighbor ebgp-multihop	367
neighbor fall-over	368
neighbor filter-list	369
neighbor local-as	369
neighbor maximum-prefix	370
neighbor next-hop-self	371
neighbor password	372
neighbor peer-group (assigning peers)	373
neighbor peer-group (creating group)	374
neighbor peer-group passive	375
neighbor remote-as	375
neighbor remove-private-as	376
neighbor route-map	377
neighbor route-reflector-client	378
neighbor send-community	379
neighbor shutdown	379
neighbor soft-reconfiguration inbound	380
neighbor subnet	381
neighbor timers	382
neighbor timers extended	383
neighbor update-source	383
neighbor weight	384
network	385
network backdoor	386
permit bandwidth	387
redistribute	387
redistribute ospf	388
router bgp	389
set extcommunity bandwidth	390
shutdown all	391
shutdown address-family-ipv4–multicast	391
shutdown address-family-ipv4–unicast	391
shutdown address-family-ipv6–unicast	392
show capture bgp-pdu neighbor	392
show config	393
show ip bgp	394
show ip bgp cluster-list	396
show ip bgp community	398
show ip bgp community-list	400
show ip bgp dampened-paths	401
show ip bgp detail	403
show ip bgp extcommunity-list	404
show ip bgp filter-list	406
show ip bgp flap-statistics	407
show ip bgp inconsistent-as	409
show ip bgp neighbors	410
show ip bgp next-hop	413
show ip bgp paths	414
show ip bgp paths as-path	416
show ip bgp paths community	417
show ip bgp peer-group	418
show ip bgp regexp	419
show ip bgp summary	421
show running-config bgp	423
timers bgp	424
timers bgp extended	424
MBGP Commands	425
debug ip bgp dampening	425
distance bgp	426
show ip bgp dampened-paths	427
BGP Extended Communities (RFC 4360)	428
deny	428
deny regex	429
description	430
ip extcommunity-list	430
match extcommunity	431
permit	431
permit regex	432
set extcommunity rt	433
set extcommunity soo	434
show ip bgp ipv4 extcommunity-list	435
show ip bgp paths extcommunity	436
show ip extcommunity-list	437
show running-config extcommunity-list	437
IPv6 BGP Commands	438
address-family	438
address family ipv6 unicast	439
aggregate-address	439
bgp always-compare-med	440
bgp bestpath as-path ignore	441
bgp bestpath med confed	441
bgp bestpath med missing-as-best	442
bgp client-to-client reflection	442
bgp cluster-id	443
bgp confederation identifier	443
bgp dampening	444
bgp default local-preference	445
bgp enforce-first-as	445
bgp fast-external-fallover	446
bgp four-octet-as-support	446
bgp graceful-restart	447
bgp log-neighbor-changes	447
bgp non-deterministic-med	448
bgp recursive-bgp-next-hop	448
bgp regex-eval-optz-disable	449
bgp router-id	450
bgp soft-reconfig-backup	450
capture bgp-pdu max-buffer-size	451
capture bgp-pdu neighbor (ipv6)	451
clear ip bgp ipv6-address	452
clear ip bgp * (asterisk)	453
clear ip bgp as-number	453
clear ip bgp ipv6 dampening	454
clear ip bgp ipv6 flap-statistics	454
clear ip bgp ipv6 unicast	455
clear ip bgp ipv6 unicast dampening	456
clear ip bgp ipv6 unicast flap-statistics	456
debug ip bgp keepalives	457
debug ip bgp ipv6 dampening	457
debug ip bgp ipv6 unicast peer-group updates	458
debug ip bgp ipv6 unicast dampening	459
debug ip bgp ipv6 unicast updates	459
debug ip bgp notifications	460
debug ip bgp updates	460
default-metric	461
description	461
distance bgp	462
ipv6 prefix-list	463
maximum-paths	463
neighbor activate	464
neighbor advertisement-interval	464
neighbor allowas-in	465
neighbor default-originate	466
neighbor description	466
neighbor distribute-list	467
neighbor ebgp-multihop	467
neighbor fall-over	468
neighbor filter-list	469
neighbor maximum-prefix	469
neighbor next-hop-self	470
neighbor peer-group (assigning peers)	471
neighbor peer-group (creating group)	472
neighbor peer-group passive	472
neighbor remote-as	473
neighbor remove-private-as	473
neighbor route-map	474
neighbor route-reflector-client	475
neighbor send-community	475
neighbor soft-reconfiguration inbound	476
neighbor subnet	477
neighbor shutdown	477
neighbor timers	478
neighbor update-source	479
neighbor weight	479
neighbor X:X:X::X password	480
network	480
network backdoor	481
redistribute	482
redistribute ospf	482
router bgp	483
show capture bgp-pdu neighbor	484
show config	484
show ip bgp next-hop	485
show ip bgp paths	485
show ip bgp paths as-path	486
show ip bgp paths community	486
show ip bgp paths extcommunity	487
show ip bgp regexp	487
show ipv6 prefix-list	488
show ip bgp ipv6 unicast	488
show ip bgp ipv6 unicast cluster-list	489
show ip bgp ipv6 unicast community	489
show ip bgp ipv6 unicast community-list	490
show ip bgp ipv6 unicast dampened-paths	490
show ip bgp ipv6 unicast detail	491
show ip bgp ipv6 unicast extcommunity-list	491
show ip bgp ipv6 unicast filter-list	492
show ip bgp ipv6 unicast flap-statistics	492
show ip bgp ipv6 unicast inconsistent-as	493
show ip bgp ipv6 unicast neighbors	493
show ip bgp ipv6 unicast peer-group	494
show ip bgp ipv6 unicast summary	495
timers bgp	495
IPv6 MBGP Commands	496
show ipv6 mbgproutes	496
Content Addressable Memory (CAM)	498
CAM Profile Commands	498
cam-acl (Configuration)	499
cam-acl-egress	501
cam-acl-egress-pe	502
cam-acl-pe	502
cam-optimization	503
cam-threshold	504
show cam-acl	504
show cam-usage	505
show cam-acl-pe	507
show cam-acl-egress-pe	508
test cam-usage	508
Unified Forwarding Table Modes	509
show hardware forwarding-table mode	510
hardware forwarding-table mode	510

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1,000
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1,808

Match case Limit results 1 per page

Configures the limit of concurrent sessions for each user on console and virtual terminal lines.

Syntax

number-of-sessions

| clear—line enable}

no login concurrent-session {limit

number-of-sessions

| clear—line enable}

Parameters

limit

number-of-

sessions

Sets the number of concurrent sessions that any user can have on console and

virtual terminal lines. The range is from 1 to 12 (10 VTY lines, one console, and one

AUX line).

clear-line enable

Enables you to clear your existing sessions.

Defaults

Not configured. You can use all the available sessions.

Command Modes

CONFIGURATION

Command

History

This guide is platform-specific. For command information about other platforms, see the relevant

Dell

EMC Networking OS Command Line Reference Guide

Version

Description

9.10(0.1)

Introduced on the S6010-ON and S4048T-ON.

9.10(0.0)

Introduced on the S3148.

9.10(0.0)

Introduced on the S6100-ON.

9.8(2.0)

Introduced on the S3100 series.

9.8(1.0)

Introduced on the Z9100–ON.

9.8(0.0P5)

Introduced on the S4048-ON.

9.8(0.0P2)

Introduced on the S3048-ON.

9.8(0.0)

Introduced on the S4810, S4820, S5000, S6000, S6000-ON, and Z9500.

Usage

Information

You must have either the System Administrator or Security Administrator privileges to configure login

concurrent-session limit or to enable clear-line.

To limit the number of concurrent sessions that any user can have on console, auxiliary, and virtual

terminal lines, use the

number-of-sessions

command.

If the

command is configured, you are

provided with an option to clear any of your existing sessions after a successful login authentication.

When you reach the maximum concurrent session limit, you can still log in by clearing any of your existing

sessions.

Example

The following example shows how to limit the number of concurrent sessions that any user can have to

four:

DellEMC(conf)# login concurrent-session limit 4

DellEMC(conf)#

The following example shows how to use the

command.

DellEMC(conf)# login concurrent-session clear-line enable

DellEMC(conf)#

When you try to log in, the following message appears with all your existing concurrent sessions, providing

an option to close any one of the existing sessions:

$ telnet 10.11.178.14

Trying 10.11.178.14...

Connected to 10.11.178.14.

Control and Monitoring