Maximum number of VTY user interfaces supported by an AR router

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Maximum number of VTY user interfaces supported by an AR router:
By default, a device allows a maximum of five VTY users at a time.
You can set the maximum number of VTY users allowed using the user-interface maximum-vty command. The maximum number is 15.

When the maximum number of VTY user interfaces is set to 0, no user can log in to the device.

Other related questions:
The maximum number of VTY user interfaces on S series switches
S series switches (except S1700) support the maximum number of VTY user interfaces: The switch defaults up to 5 VTY users online at the same time. You can use the user-interface maximum-vty command to configure up to 15 VTY users to be online at the same time. When the maximum number of VTY user interfaces is 0, no user (including network management users) can log in to the switch.

How many VTY user interfaces does a switch support
By default, a switch allows a maximum of five VTY users at a time. You can set the maximum number of VTY users allowed using the user-interface maximum-vty command. This maximum number can be set to 15 at most (a maximum of 15 VTY users allowed). When the maximum number of VTY user interfaces is set to 0, no user (even NMS user) can log in to the switch.

Maximum number of users supported by the U1900 series unified gateways
The maximum number of users supported varies depending on the U1900 series unified gateway model: eSpace U1910: 100 eSpace U1911: 100 eSpace U1930: 300 eSpace U1960: 1000 eSpace U1980: 10000 eSpace U1981: 20000 (Note that in V100R001, the maximum number of users supported is 10000; from V200R003, the maximum number of users supported is 20000.)

What is the maximum number of paths that AR series routers support to perform load balancing
The AR120&AR150&AR160&AR200&AR500&AR1200 series, AR2201-48FE, AR2202-48FE, AR2204-27GE, AR2204-27GE-P, AR2204-51GE-P, AR2204E, and AR2204 support a maximum of four paths. AR2220, AR2240, AR2240C, ,AR3600, and AR3200 series support a maximum of eight paths. NOTE: In V200R005C10 and later versions, devices with SRU200 or SRU400 installed support a maximum of 16 next hops for load balancing. In V200R006 and later versions, devices with SRUX5 or SRU400 installed support a maximum of 16 next hops for load balancing. In V200R007 and later versions, devices with SRU200E installed support a maximum of 16 next hops for load balancing.

Number of L2TP users supported by the AR
The number of L2TP users supported by the device is as follows: - AR120&AR150&AR160&AR200&AR500: 16 - AR510: 2 - AR1200 series, AR2201-48FE, AR2202-48FE, and AR2204: 128 - AR2220, AR2220L, AR2220E, and AR2240 and AR3200 equipped with the SRU40 or SRU60: 512 - AR2240 and AR3200 equipped with the SRU80 or SRU100: 1024 - AR2240 and AR3200 equipped with the SRU200: 1024 - AR3600 equipped with the SRUX5: 1024 - AR120-S&AR150-S&AR160-S&AR200-S: 16 - AR1200-S series, AR2201-48FE-S, and AR2204-S: 128 - AR2220-S and AR2240-S: 512 - AR3200-S equipped with the SRU40: 512 - NE16EX-6 and NE16EX-8 equipped with the MSP20: 1024 - NE16EX-6 and NE16EX-8 equipped with the MSP40: 1024 - AR530: 16

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