[j-nsp] SRX vs J-Series for HA over Layer2

[Pavel Lunin]

My 2 cents.


2011/3/8 Ben Dale <bdale at comlinx.com.au>

>
> Yes this can be done - control link traffic on the branch SRXs is actually
> sent 802.1Q tagged in VLAN 4094, so you'll need to make the interface you
> plug into the control link a trunk on your EX.
>
>
As I've mentioned a couple of days ago in some of the neighboring threads,
this behavior is slightly changed since 10.2.

http://www.juniper.net/techpubs/en_US/junos10.2/information-products/topic-collections/release-notes/10.2/topic-45729.html#rn-junos-srx-j-CIDBS

*Removing Control VLAN 4094 in Chassis Cluster*—For SRX Series branch
> devices (SRX100, SRX210, SRX240, and SRX650), the existing virtual LAN *(VLAN)
> tag* used for control-link traffic will be replaced with the use of
> experimental Ether type *0x88b5*. However, backward compatibility is also
> supported for devices that have already deployed chassis cluster with VLAN
> tagging in place.
>
>    - To toggle between VLAN and Ether type modes, use the following
>    command:
>
>    set chassis cluster control-link-vlan enable/disable
>
>    *Note: *You must perform a reboot to initialize this configuration
>    change.
>    - To show whether control port tagging is enabled or disabled, and to
>    view the chassis cluster information, use the following command:
>
>    show chassis cluster information
>
>
>