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Article ID: CTX236843
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Description
This article compares the difference between NetScaler and Cisco VLAN types.
| NetScaler VLAN | CISCO |
Default VLAN
All interfaces are part of VLAN-1 as native members.
- Only untagged packets are accepted. No tagged packet is accepted.
- Once untagged packet arrives on any interface it is assumed to have arrived on Native VLAN (VLAN 1).
- All packets go out untagged.
- No outgoing packet is VLAN tagged, tagged packets are accepted if the interface is tagged member of VLAN 1.
Configuration Steps
- Present in NetScaler by default.
- Default value is VLAN 1.
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Default VLAN
Cisco default vlan configurations is present in the system by default.
- You can use this VLAN but you cannot delete it.
- Used for accessing the system for configuration purpose.
Configuration Steps
- Present in Cisco by default.
- Default value is VLAN 1.
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NSVLAN/Native/Management VLAN
- Used to segregate the NetScaler management traffic. .
- NSVLAN is L3 VLAN with NSIP subnet bound to it.
- Restricts NSIP’s ARP resolution only to that VLAN.
- Needs reboot to make the setting effective.
- By default, NSVLAN is tagged unless tagged is set to NO (-tagged NO).
- It can use any VLAN number between 2 to 4094.
Configuration Steps
- set nsconfig –nsvlan 10 –ifnum 1/1
- Other way is to use “Config NS” and configure the required information.
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Management VLAN
- Used to segregate the Cisco management traffic.
- Trunking the VLAN you want to use down to your access switches and assign an IP address and the default gateway in that VLAN.
- By default, Management VLAN is tagged.
- It can use any VLAN number between 2 to 4094.
Configuration Steps
- Switch(config)#vlan 3
- Switch(config)#int fa 0/3
- Switch(config-if)#switchport access vlan3
- Switch(config)# int fa 0/3
- Switch(config-if)# switchport mode trunk
- Switch(config)# int vlan 3
- Switch(config-vlan) #ip add 192.168.1.5 255.255.255.192
- Switch(config)# ip default-gateway 192.168.1.1
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Port based VLANs/Untagged VLAN
- It is port based VLAN.
- When bound natively, it is removed automatically from VLAN-1 (The current native vlan) and is added to VLAN-2.
- Only untagged packets are accepted and tagged packet are not accepted.
- All outgoing packets are untagged.
Configuration Steps
- Add vlan 2
- Bind vlan 2 /10. -ifnum 1
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Switch Mode Access Port
- Ethernet interfaces can be configured as Switch Port Mode Access VLAN.
- Puts the interface into permanent non-trunking mode and negotiates to convert the link into a non-trunking link.
- The interface becomes a non-trunk interface even if the neighboring interface does not change.
Configuration Steps
- switch# config terminal
- switch(config)# interface ethernet 1/10
- switch(config-if)# switchport mode access
- switch(config-if)# switchport access vlan 5
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Tagged VLAN
- Used to segregate specific tagged packets and is described as Tagged VLAN.
- When bound as a tagged member, Current native VLAN is retained (VLAN-1) as native member, but also added to Vlan-3 as a tagged member.
- No other tagged packets are accepted only VLAN 3 tagged packets and Untagged packets are accepted .
- When going out of VLAN-1 it goes as untagged packets.
- When going out of VLAN-3 it goes as tagged packets.
Configuration Steps
- add vlan 3.
- bind vlan 3 -ifnum 10/2 -tagged
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Switch Port Mode Trunk
- Ethernet interface can be configured as Switch Port Mode Trunk.
- Switch Port Mode Trunk puts the interface into permanent trunking mode and negotiates to convert the link into a trunking link.
- The interface becomes a trunk interface even if the neighboring interface does not change.
- We can add specific VLAN number in the trunk mode.
- Trunks carry the traffic of multiple VLANs over a single link and allow you to extend VLANs across the network.
Configuration Steps
- switch# config terminal
- switch(config)# interface ethernet 1/10
- switch(config-if)# switchport mode trunk
- switch(config-if)# switchport trunk native vlan 5
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Tagged VLAN All
- Used to receive and transmit only tagged packets and is described as tagged all VLAN.
- This is per interface-based setting.
- Only tagged packets are accepted.
- No untagged packets are accepted.
- All outgoing packets are tagged only.
Note: NetScaler allows a range of VLANs to be part of Interface as well using Trunk Mode
Configuration Steps
- add vlan 3
- set interface 10/2 -tagall On
- bind vlan 3 -ifnum 10/2 -tagged
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Switch Port Mode Trunk All
- Ethernet interface can be configured as Switch Port Mode Trunk.
- Configures the list of VLANs allowed on the trunk.
- All VLANs are allowed by default.
- You cannot remove any of the default VLANs from a trunk.
Configuration Steps
- switch# config terminal
- switch(config)# interface ethernet 1/10
- switch(config-if)# switchport mode trunk
- switch(config-if)# switchport trunk allowed vlan {ALL}
switch(config-if) # switchport trunk allowed vlan {add | except | all |
remove} |
Sync VLAN
- Used to segregate Sync vlan traffic between HA pair.
- Will make sure all the HA related traffic will go through this VLAN.
- Config synchronization, propagation, Connection mirroring, Persistent session synchronization, Session state synchronization.
Configuration Steps
- add vlan 3
- set node -hasyncvlan <VLANID>
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Redundancy Status
- Redundancy status is described as high available design.
- Enables (default) automatic copying of boot variables from the active supervisor module to the standby supervisor module.
Configuration Steps
- switch(config)# boot auto-copy Auto-copy administratively enabled
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Issue/Introduction
This article compares the difference between NetScaler and Cisco VLAN types.
