Data Center Switches

Does any one can kindly tell me what is H-dev mean ? Recently I meet many DDTS about H-dev. I don't know what different with H-dev and G+ release like [7.0(3)I7]   So if someone know that could you please tell me about this ?   They are totally diffe...

Network scheme:     Problem: N3K are adding double tag to frames with dst-mac 01:00:0c:cd:cd:d0. If I change MAC to i.e. 01:00:0c:cd:cd:d6 problem doesn't occur. Second tag is with the same VID that first one. On HUAWEI on client port is BPDU tunnel ...

Hello everyone. I have two 7010 chassis and we are replacing the cards in them. A lot of stuff has been consolidated so we are not using the chassis to their full potential. One of the chassis will receive 2 supervisors, 2 copper cards and 2 fiber ca...

Problem: N3K doesn't pass L2 protocol frames in VLAN marked as remote span (i.e. with dst-mac 01-80-c2-00-00-02).   I've set VLAN for remote span in network. It is also configured on N3K that only passes that VLAN, and it's configured as remote-span....

Problem: ARP packets passed through L2 VLAN on N3K increase COPP class-map copp-s-arp, in effect there are ARP timeouts on valid VLANs with SVI interfaces, and naturally cause network unreachable.   Same problem is described for N7K in that article: ...

Hello   We attempted to enable QoS on our edge Nexus 9k pair for a couple of public facing URLs as follows:   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! define qos policy-map   policy-map type qos classify  class CC-servers     set qos-group 1  class class...

Hi folks,   I’d like to ask what am I actually getting when running nexus 3032Q in nexus9000 mode with “system switch-mode n9k” please? Thank you?   adam

HI All,what causes to enter a nexus in loader prompt mode ?

Does anyone know how I can get access to a Catalyst 9300 for testing some commands?   Thank you in advance, LN

Hi. we have 2 nexus 9348-FXP. Recently I found the new feature in nxos 9 https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3548/sw/programmability/9x/b_Cisco_Nexus_3500_Series_NX-OS_Programmability_Guide_9x/b_Cisco_Nexus_3500_Series_NX-O...

I have 4x 9504 switches that I can't connect pairs together configure for VPC. I tested cables, QSFPs, set speed, shut/no shut, etc. and I can't get them to connect to each other. vPC feature is enable on all. Anyone experience this or have any ideas...

Can we configure vPC on N3K connect with VSS on 6500 ?

For a couple of years ago I heard from a system engineer at Cisco that it is not recomended to connect a router to a FEX port if the router are running a routing protokoll to a upstream router. It was something about connection it to FEX could distru...