Other Data Center Subjects

Concerning OTV and VLAN Assignments

I've been looking around but can't find any specific information...When configuring OTV between data centers, is it required/advisable/best practice to have the VLANs that you need to extend from one DC to another have the same VLAN ID? Does that mat...

Cisco Fabric Services (CFS) in Nexus

Hi,I am unable to find any documentation how exactly this protocol works in the background. When one must use CSFoE and when to use CFSoIP? When to use multicast address and if multicast routing must be enabled in the network for CFS to work. The con...

Statics for Nexus 1000v in DCNM-LAN

I have a question about the Nexus 1000v interfaces statistics in DCNM-LAN. In interface statistics panel for Nexus 1000v, don't see any statistics. It's necesary some kind of license for these feature? For Nexus 5000 I have no problem in wanting to ...

Microsoft Lync VS Cisco UC9

Does anyone has a comparison of Cisco UC9 VS Microsoft Lync 2013

HSRP/FHRP in an OTV Network across DC's

Hello - I've been struggling to get my head around how to implement gateway redundancy over multiple DC's "hosting" the same L2 network(OTV). I'd appreciate if someone could lead me in the right direction to designing a solution.What is the best way ...

Resolved! Nexus 7000 VDC to VRF Limit

Hi,What is the limit of maximum VRF's under each VDC.as VDC resource template command has minimum 2 & maximum 1000but Default Resource Limits for the Non default VDC shows max 4096 VRFsso is it that total system supports total of 4096, n each vdc has...

Dual 7010 - Layer 3 Peering Best Practice/Recommendation

I have 2 Nexus 7010s with 2 Nexus 5548s dual connected to each 7K. The 7010s are acting as redundant core devices. Dual Sup2E in each.Can someone tell me what the best practice is for layer 3 peering (EIGRP) between these devices. I can't seem to fin...

VSS Linecard Support

Hi, I wanted to confirm whether a WS-X6704-10GE linecard is supported with VS-S720-10G-3C running VSS?I read this on CCO, that would imply i was...."All 6700 series modules with Distributed Forwarding Card (DFC) 3C or DFC3CXL"Thanks Colin WS...

Resolved! single sided VPC to a 3750 switch

Hi,Have set up a simple VPC arrangement between two Nexus 7ks, offering a vpc down to a 3750 switch.I was sort of expecting the 3750 switch end to be spanning tree forwarding on both of it's port-channel's member ports, but it's actually blocking on ...

Resolved! When 10Mb tape library port connected to Cisco Nexus 2k, physicla link not coming up

Hi, I have nexus 2k uplinked with 5k Nexus, When i am trying to connect 10Mb tape library server port, its physically not coming UP, I have tried to harden the port on 2k by setting the speed/duplex/bpdu enabling but still not work...

Oversubscription ratio calculation

How do I determine the oversubscription ratio of a simple 2 tier datacenter network?How would I design a well defined contention/oversubscription network?

Nexus vPC connection

Hi teamHere are two Nexus vPC questions need help~If a IBM server LAN card is in Active-Standby mode,Does the Nexus vPC running normallywithout other configuration?If some device are installed windows/linux/unix OS, and LAN card is in Active-Active/...

VPC Keep-alive link in F1 series Linecards

Hi.Can we use N7K F1 linecards for vpc keepalive link?Configure layer 2 portchannel and a point-to-point vlan interface?thanks

Peer-Switch with vPC and non-vPC Vlan Port-Channels

Hi, in a design guide i have noticed that it is best practice to split vPC and non-vPC vlans on different inter-switch port-channels. Now, if i want to use the Peer-Switch function, but the port-channel interface of the non-vPC-vla...