Active active Data Center:configuration docuemt

[rajib.das]

Hi, I am looking for a detail configuration level active active Data center document. I have got a design doc (Data Center Interconnect
Design Guide for Virtualized Workload Mobility with Cisco, EMC and VMware).

Can anyone   provide the configuration document for the same please.

The Design & configuration  should contain:

1. LTM and GTM.

2. ASA 

3. Multiple vrf with inter vrf communication  accross DC through Firewall . 

4. Nexus 7k (With FHRP).

Thanks..Rajib

[Muhammed Marakkoottathl]

Hi Rajib,

I do not yet find a documentaiton with with LTM and GTM, considering these are F5 solution I guess from cisco side you should consider these are lik load balancers and Global site selectors.

There are good documentaiton of active-activie design considerations on the CIscolive presentaions.

http://d2zmdbbm9feqrf.cloudfront.net/2013/anz/pdf/BRKDCT-2615.pdf

And good number of features you can use it to make it seam less  like : ITD, anycast GW, OTV , ASA clustering etc.

Muhammed M |  NCE | CCIE
Data Center PDI Technical Advisor
http://www.cisco.com/go/pdi
together we are the human network .:|:.:|:. CISCO

[rajib.das]

Hi Ganesh and Muhammed,

Thanks for your reply. One question related to this.

1. Can Cisco ASA is capable of inter vrf communication like routers? 

2. If it is so, can you please help me to provied the configuration document for that. 

Thanks..Rajib

[Ganesh Hariharan]

Hi Ganesh and Muhammed,Thanks for your reply. One question related to this.1. Can Cisco ASA is capable of inter vrf communication like routers? 2. If it is so, can you please help me to provied the configuration document for that. Thanks..Rajib

Hello Rajib,

Inter Vrf routing can only happen by having another l3 device between them or by using vrf-lite functionality.

It is simple you can have one interface in ASA in one VRF and another in other and do routig in asa based on subnet of those VRF.

Hope it Helps..

-GI

Rate if it Helps..

[rajib.das]

Hi Ganesh,

Thanks!

Can you please share documents reletd to inter vfr communication (may be vrf light) through Cisco ASA/FWSM.

Thanks..Rajib

[Ganesh Hariharan]

Hello Rajib,

Have a look on this link which may give btter explanation for your understaing.

Inter VRF using ASA

But my recommendation is make a simple architecture , Lets suppose you have one Two VRF in L3 switch and they want communicate between eack other.

Consider ASA as another router between two virtaul router , so you would require two interface of ASA one in each VRF for communication.

ASA would be know to route the traffic of each other VRF with policy applied.

Hope it Helps..

-GI

Rate if it Helpss

[Ganesh Hariharan]

Hi, I am looking for a detail configuration level active active Data center document. I have got a design doc (Data Center Interconnect
Design Guide for Virtualized Workload Mobility with Cisco, EMC and VMware).can anyone   provide the configuration document for the same please.The Design & configuration  should contain:1. LTM and GTM.2. ASA 3. Multiple vrf with inter vrf communication  accross DC through Firewall . 4. Nexus 7k (With FHRP).Thanks..Rajib

Hello Rajib,

There is no specific design document for Active/Active Datacenter design .You need to seggregate layer by layer based on traffic flow from North - South and East -West and mainly on application session maintence.

Active - Active from internet if you ask , what we implement GTM in internet layers as Master DNS for any hosting company and do load balancing for A record for incoming traffic. Once traffic enters into DC 1 there would set of HA cluster firewalls and switches to support HA inside a DC.

Also both the DC woudl be identical in terms of deployment but with different ip subnet for layer DC with Active/Active services running from both the DC end.

Check with application landscape team , is the application can run from both the DC's by considering the storage solution as well.

To address your query .. LTM /GTM will be part of certain layer where load balancing is required within DC or across DC.

with Active-Active DC design you can only have local ASA cluster in each DC which will router traffic based on policy pakage deployed.

Local FHRP is always recommeded for server gateway for different VLANS.

Hope it Helps..

-GI

Rate if it Helps..