topic Re: 4 5304 - 2 Datacenter - Full redundancy in Switches, Hubs, and Modems

4 5304 - 2 Datacenter - Full redundancy

Alen Ahja — Tue, 04 Sep 2007 14:47:56 GMT

Hi @ all,

we planned to modifiy our backboe with 2 additional 5304. So the plan is to install in each datacenter 2 5304 and connect them all together to reach full redundancy in the backbone Area.

We have also different VLAN's which must be on the Switches.

My questions are:

1)
How can we reach loadsharing over the connection between the switches? Must we use MSTP and GVRP?

2)
Is a 1x 1 GBit FIbre enough to connect each switches together?

3)
How must we implemented VRRP?

4)
Doen anybody have a example config for this scenario?

I say thank you for your help.

Kind Regards

Alen

Re: 4 5304 - 2 Datacenter - Full redundancy

Mohieddin Kharnoub — Wed, 05 Sep 2007 01:14:10 GMT

Hi

1- With Layer2 (MSTP) and Layer3 (XRRP) you can have full redundant network.
GVRP not recommended at all.

2- In case you are planning for full mesh, its better to have redundant link from each 5300, and better also to have dual links in case you have enough Mini-GBIC and fiber cores.

3- With the 5300, Layer3 redundancy can be done based on XRRP, and VRRP not available on that switches.

4- In most cases, with data center solutions, they will use OSPF ECMP for load balancing especially if the data center interconnects with the L4-L7 (Firewalls, Packet shapers, DMZs, Cache boxes, and any other devices like SSL and Data or WAN Acceleration ...).

The following link will explain how to implement OSPF with the 5300, it could be helpful:

http://www.hp.com/rnd/support/config_examples/5300xl_ospf_singlearea.pdf

Good Luck !!!

Re: 4 5304 - 2 Datacenter - Full redundancy

Alen Ahja — Wed, 05 Sep 2007 01:48:09 GMT

Hi!

Thanx for answering.

Did you have an example config for this scenario in your bag? :)

1) How must I configure LoadSharing for the VLAN's or will this run by GRRP?

Re: 4 5304 - 2 Datacenter - Full redundancy

Mohieddin Kharnoub — Wed, 05 Sep 2007 10:17:08 GMT

Hi

Check the attached file showing a sample XRRP and MSTP from my bag :)

In fact i used the 5300 as a Core with XRRP and 5400 as edge (i didn;t have the premium edge license to run VRRP)

The config for Core1 of the 5300:

hostname "SW5300-1"
console inactivity-timer 15
ip default-gateway 192.168.1.45
ip routing
logging facility syslog
logging 192.168.1.141
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged A1-A16,B1-B16
ip address 192.168.1.46 255.255.255.0
exit
vlan 2
name "VLAN2"
ip address 10.1.2.2 255.255.255.0
tagged A2,B1,B4
exit
vlan 3
name "VLAN3"
ip address 10.1.3.2 255.255.255.0
tagged A2,B1,B4
exit
vlan 4
name "VLAN4"
ip address 10.1.4.2 255.255.255.0
tagged A2,B1,B4
exit
xrrp
xrrp domain 2
xrrp instance 1 1
xrrp instance 2 1 ip 192.168.1.47 255.255.255.0
xrrp instance 1 2
xrrp instance 2 2 ip 10.1.2.3 255.255.255.0
xrrp instance 1 3
xrrp instance 2 3 ip 10.1.3.3 255.255.255.0
xrrp instance 1 4
xrrp instance 2 4 ip 10.1.4.3 255.255.255.0
ip route 0.0.0.0 0.0.0.0 192.168.1.1
spanning-tree
spanning-tree protocol-version MSTP
spanning-tree config-name "SPAN"
spanning-tree config-revision 8
spanning-tree instance 1 vlan 1 2
spanning-tree instance 1 priority 0
spanning-tree instance 2 vlan 3 4
spanning-tree instance 2 priority 1
spanning-tree hello-time 1 priority 0

The config for Core2 of the 5300:

hostname "SW5300-2"
console inactivity-timer 15
ip default-gateway 192.168.1.45
ip routing
snmp-server community "public" Unrestricted
vlan 1
name "DEFAULT_VLAN"
untagged B1-B24,C1-C24,D1-D24
ip address 192.168.1.47 255.255.255.0
exit
vlan 2
name "VLAN2"
ip address 10.1.2.3 255.255.255.0
tagged B2,B4,B6
exit
vlan 3
name "VLAN3"
ip address 10.1.3.3 255.255.255.0
tagged B2,B4,B6
exit
vlan 4
name "VLAN4"
ip address 10.1.4.3 255.255.255.0
tagged B2,B4,B6
exit
xrrp
xrrp domain 2
xrrp router 2
xrrp instance 2 1
xrrp instance 1 1 ip 192.168.1.46 255.255.255.0
xrrp instance 2 2
xrrp instance 1 2 ip 10.1.2.2 255.255.255.0
xrrp instance 2 3
xrrp instance 1 3 ip 10.1.3.2 255.255.255.0
xrrp instance 2 4
xrrp instance 1 4 ip 10.1.4.2 255.255.255.0
ip route 0.0.0.0 0.0.0.0 192.168.1.1
spanning-tree
spanning-tree protocol-version MSTP
spanning-tree B6 priority 0
spanning-tree config-name "SPAN"
spanning-tree config-revision 8
spanning-tree instance 1 vlan 1 2
spanning-tree instance 1 priority 1
spanning-tree instance 1 B6 priority 0
spanning-tree instance 2 vlan 3 4
spanning-tree instance 2 priority 0
spanning-tree hello-time 1 priority 1

So i think the attached drawing explains how is the setup.

Good Luck !!!