[f-nsp] Getting started with ServerIron 4G

Chris Price cprice at its.to
Mon Feb 4 15:10:10 EST 2008


Thanks John, thats exactly the info I was looking for. Unfortunately it 
came a bit late as I just got off the phone with Foundry support who 
walked me thru exactly what you have below! I do however appreciate you 
posting the answer.

For anyone following this thread, the steps required to configure a 
hot-standby HA pair of serverirons with a failover gateway IP and 
configuration sync are;

1) Setup hot-standby HA following the instructions in the SLBguide.pdf doc
2) If required, configure a failover IP address that will fail between 
the active and standby nodes to act as a default gateway for systems 
being load balanced; 

server source-standby-ip 10.xxx.xxx.xxx 255.0.0.0 0.0.0.0

3) Setup config-sync for one node to always be the config sender and one 
node to be the receiver.

On sender node:
config-sync sender eth X mac <mac of receiver node> vlan Y    (where Y 
is the vlan ID of your 'backup' hot-standby HA interface)

On receiver node:
config-sync receiver eth X vlan Y (where Y is the vlan ID of your 
'backup' hot-standby HA interface)

4) Run 'config-sync slb' on the sender node. All slb configs will be 
sync'd to the receiver node.

<fin>

One minor drawback of this approach is that if your 'sender' node ever 
goes down for a period of time (hardware failure, etc) and you make 
config changes to the 'receiver' node said changes on teh receiver node 
will need to be manually propagated to the 'sender' node when it comes 
back online OR you need to reconfig the 'receiver' node to be the sender 
and the previous 'sender' node to be a receiver and then sync.


Cheers!

Chris


John G. wrote:
> .to email address.  nice!  anyhow, if u log into your 
> secondary/standby and u have no real servers over there your failover 
> will never work.
>
> once u have the config-sender set up all u do to synch the config is:
>
> conf t:
>
> config synch slb
>
> then u will see some stuff spit out to the console saying the synch 
> was complete.  SLB stands for Server Load Balance.  there are 
> different options but that is the one u want.
>
> here is a config snippet to get u started on the primary:
>
> <SNIP>
>
> config-sync sender ethernet 2/1 mac 0012.2222.1111 vlan-id 123
>
> where ethernet 2/1 is the LAN port in our config.  VLAN is the VLAN 
> the LAN ports are in.  and the MAC address is the hardware address of 
> your secondary foundry.  this can be found via sh interface ethernet 
> 2/1 (use the one that starts with bia).
>
> ----------
>
> secondary config:
>
> config-sync receiver ethernet 2/1 vlan-id 123
>
> ----------
>
> MAC addresses and VLANs changed to protect the innocent.
>
> cheers,
> jg
>
> p.s. vote Ron Paul in 2008!
>
>




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