Redundancy for the Cisco 6500 Router

[Mohd faraj]

     Hi every body!

  I have 2  WS-C6504-E" as following configuration :-

Core-1#show module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1    2  Supervisor Engine 720 (Active)         WS-SUP720-3B      
  2   48  CEF720 48 port 1000mb SFP              WS-X6748-SFP      
  4   10  WiSM WLAN Service Module               WS-SVC-WISM-1-K9  

Mod  Sub-Module                  Model             
---- --------------------------- ------------------
  1  Policy Feature Card 3       WS-F6K-PFC3B      
  1  MSFC3 Daughterboard         WS-SUP720         
  2  Centralized Forwarding Card WS-F6700-CFC      
  4  Centralized Forwarding Card WS-SVC-WISM-1-K9-D

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Core-2#show module
Mod Ports Card Type                              Model            
--- ----- -------------------------------------- ------------------
  1    2  Supervisor Engine 720 (Active)         WS-SUP720-3B     
  2   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP     
  3   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP      
  4   10  WiSM WLAN Service Module               WS-SVC-WISM-1-K9  

Mod  Sub-Module                  Model             
---- --------------------------- ------------------
  1  Policy Feature Card 3       WS-F6K-PFC3B      
  1  MSFC3 Daughterboard         WS-SUP720         
  2  Centralized Forwarding Card WS-F6700-CFC      
  3  Centralized Forwarding Card WS-F6700-CFC     
  4  Centralized Forwarding Card WS-SVC-WISM-1-K9-D

=========================================================

currentily in my network there is no Redundancy as shwon in the attached file (Currnet Design)

I am going to make a new design as shown in the attched file (New Design)

so I need your opinion about the connection and configration between both cores if is L2 or L3 , also between access switch and Core switches

Note :- in the both ISP routers I am using BGP .

I Look forward to your opinion.

Thanks..

[talmadari]

Hi,

looking on your new design I think it will be best for use Layer-3 redundancy between the core switches and the edge routers, for example you can use OSPF and BFD and gain a sub-second fail-over between them.

As for the access layer - does these switches are layer-2? where is the layer-3 for those hosts which connected to those switches?

[Mohd faraj]

Hi ,

Regarding  Layer-3 for those hosts , in my plan actually there are aournd 10 VLANs and will be created SVI for each one with GLBP protocol on both core switches ,

between the core switches and the edge routers will be Layer-3 through BGP .

my question which is the best for Layers between  both core switches for connection with each other?

as per this design on the each siwtches there are 2 uplink to both core switch but on of this links will be block  due to STP

Thanks..