Server Networking

Hi I have read a lot about problems with Routers connected using vPC to a Nexus Switch. My planned topology is slightly diefferent as the Router is not connected directly to both Nexus Chassis but with an intermediate FEX. Does this change anything ...

Hello,      We design a fabricpath network, because we have old network, and want to merge this old network to fabricpath leaf node.      we must running ospf on spine n7k and leaf n7k  or external router (through VPC+),  I have a question:    Is the...

Is it possible to remark DSCP labels based on an ACL for traffic coming in on a FEX HIF? Is anybody already using this in production or lab? I am asking because there is a TCAM region for FEX IPV4 Port QoS [fex-qos]. HW: Nexus 9372PX + 2248TP-E

Hi all We have a trouble with connection to UCS C240 M3S that running CUCM with 1 Publisher and 4 Subscribers, on remote sites we are experimenting errors with features on transferencing, conferencing, in/out comming calls, we put a sniffer to monit...

Hi, We have a problem with multicast traffic over OTV (data plane).There is multicast source on site A in VLAN 10, also there're a few multicast receivers in the same vlan on site B.VLAN is stretched between sites with OTV. So I've configured IGMP q...

Hi all newbie to all datacenter stuff. And i Will of course lab this one out. But imagine you have 2 Locations, interconnected with l3vpn. 10.0.0.0/8 and 10.128.0.0/9 on each side. DC is on one location today, but I would like to have one on each lo...

Does nexus 5500 support QinQ? I have a customer wants to use QinQ. I am not sure whether its supported in 5500. Or should I go for 5600? thanks, Ramesh

Windows machines are not getting DHCP IP from Windows DHCP server using Nexus9508. Please advice immediately. Thanks

Anyone know how to disable this in the N5K?I suppose this is probably a function of the newer NX-OS itself, and I know some *nix syslog daemons allow you to disable it... not sure if it is possible via the switch itself.The reason is, my NMS is set u...

Does anyone know how to recover the usernames on the switch? I've tried the steps listed at: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/password_recovery/b_nx_os_pwr/nx_os_pw.html, but I don't know what the user name of the admin acc...

At the moment i am running 6.2.2a. According to Cisco CCO, it's advised to use an interim release 6.2.8a towards the the final version 6.2.12 or 6.2.14. Is there any special reason behind this step? Should i make the interim release 6.2.8a on both vP...

Where can i download NX-OS TITANIUM from.?

Dear Experts, I have a task to migrate n7k vpc peer-link from 2x10G-based port-channel to 2x40G-based port-channel. When i shutdown original peer-link, vPCs on the secondary switch go down. Then I remove "vpc peer-link" from the vPC primary switch,...

I have nexus 9396TX with 12 x 40 Gbps QSFP+ ports and I need to convert them to 10 G what is the available solution to convert from 40 Gbps QSFP+ to 10 Gbps SFP+?