Redundant design with 7600

I have the following design
ASW 1-------7600(1)------DSW 1
|
ASW2--------7600(2)------DSW 2
both 7600s are configured for HSRP.
i am looking for a proper redundant design for this setup with a configuration guidelines

Hi,
Starting from Vivado 2015.1 we have "out of context per IP" setting for block design. So each IP inside the block design will have its own synthesis run and this helps in run time improvement.
You need to use "IP cache" feature in addition to this. Refer to page-25 of http://www.xilinx.com/support/documentation/sw_manuals/xilinx2015_1/ug896-vivado-ip.pdf for more details.
Try using only one block design, this might help to avoid the error.
Thanks,
Deepika.

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The biggest limitation to a classic port channel communication is that the port channel operates only between two devices. To overcome this limitation, Cisco NX-OS has a technology called virtual port channel (vPC). A pair of switches acting as a vPC peer endpoint looks like a single logical entity to port channel attached devices. The two devices that act as the logical port channel endpoint are actually two separate devices. This setup has the benefits of hardware redundancy combined with the benefits offered by a port channel, for example, loop management.
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Hello Gustavo
Please see my responses to your questions:
Yes almost all routing protocols use Multicast to establish adjacencies. We are dealing with two different type of traffic –Control Plane and Data Plane.
Control Plane: To establish Routing adjacency, the first packet (hello) is punted to CPU. So in the case of triangle routed VPC topology as specified on the Operations Guide Link, multicast for routing adjacencies will work. The hellos packets will be exchanged across all 3 routers and adjacency will be formed over VPC links
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/operations/n5k_L3_w_vpc_5500platform.html#wp999181
Now for Data Plane we have two types of traffic – Unicast and Multicast.
The Unicast traffic will not have any forwarding issues, but because the Layer 3 ECMP and port channel run independent hash calculations there is a possibility that when the Layer 3 ECMP chooses N5k-1 as the Layer 3 next hop for a destination address while the port channel hashing chooses the physical link toward N5k-2. In this scenario,N5k-2 receives packets from R with the N5k-1 MAC as the destination MAC.
Sending traffic over the peer-link to the correct gateway is acceptable for data forwarding, but it is suboptimal because it makes traffic cross the peer link when the traffic could be routed directly.
For that topology, Multicast Traffic might have complete traffic loss due to the fact that when a PIM router is connected to Cisco Nexus 5500 Platform switches in a vPC topology, the PIM join messages are received only by one switch. The multicast data might be received by the other switch.
The Loop avoidance works little different across Nexus 5000 and Nexus 7000.
Similarity: For both products, loop avoidance is possible due to VSL bit
The VSL bit is set in the DBUS header internal to the Nexus.
It is not something that is set in the ethernet packet that can be identified. The VSL bit is set on the port asic for the port used for the vPC peer link, so if you have Nexus A and Nexus B configured for vPC and a packet leaves Nexus A towards Nexus B, Nexus B will set the VSL bit on the ingress port ASIC. This is not something that would traverse the peer link.
This mechanism is used for loop prevention within the chassis.
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It still does loop prevention but the L3-to-L2 lookup is different in Nexus 5000 and Nexus 7000.
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https://supportforums.cisco.com/sites/default/files/session_14-_nexus.pdf
DCI Scenario: If 2 pairs are of Nexus 5000 then separation of L3/L2 links is not needed.
But in most scenarios I have seen pair of Nexus 5000 with pair of Nexus 7000 over DCI or 2 pairs of Nexus 7000 over DCI. If Nexus 7000 are used then L3 and L2 links are required for sure as mentioned on above presentation link.
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Thanks,
Vishal

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FW-VRF (Subnet A)
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I'm gonna expand my question a bit as I can not seem to get a working config in scenario 1. From the ACE I can ping the VRFs on both side of the ACE. I can on the other hand not ping neither the bvi-address of the ACE nor one VRF from the other. Can anyone notice any immediate errors in my config? Thanks in advance for any help!
Addresses:
10.3.66.1 - FW_VRF on client side
10.3.66.6 - LAN_VRF on server side
10.3.66.7 - BVI if on ACE
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Redundant design with 7600

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