Switching

Are there can distance/latency limitations in using back-to-back vPC as DCI between two Data centres? I am looking at two DCs approx 200 miles apart with average RTT 50 ms. 

Hi all. I created a user in Nexus 9k switch and assigned network operator role for read only access.But my customer mentioned that the show running-conf commmd did notwork with that role.Its saying %Permission denied for the role.. Do we have any cha...

Hi.We have virtual stack with 2x C1000-24P-4X-L running 15.2(8)E and we have a few problems with PoE on just one switch in stack: XXXXXXXXXXXXXXXX#show power inlineModule Available Used Remaining(Watts) (Watts) (Watts)------ --------- -------- ------...

Hello there, I know that IOS is differ than IOS XE software. as I know IOS XE is an evolution of cisco IOS, so the switch should either has IOS or IOS XE, when I type show version on the following switch, I found both IOS and IOS EX >> so which one i...

Hi guys, Two router are connected CE TO PE i can see neighbour IN PE OF CE but BGP session between them are still active NOTE:- between CE and PE we  have carrier link and all the test from carrier are good and clean any possibility of correctness   

LS,Recently I replaced a Netgear switch (MS510XM) with a new Cisco CBS220-8P-E-2G in my class room (I’m music teacher and my network is very simple) that should connect the router to another unmanaged switch through the dedicated SFP-ports using two ...

Hello,I have a cisco 4500x and n5k-5672up and in their datasheet mentioned that we can have "Security ACL Entries (1K=1024) 128K (64K ingress and 64K in egress) Shared with QoS" for 4500x and " Support for up to 4000 access control list (ACL) entries...

We need to use an AP IW3700 for a mobile vehicle application.We would like to know, if there are some tables, that could indicate how many power cycles (cold boot) could the AP support before breaking; this is because in that application the power wo...

We have 4+ 2960X-24TS-L switches that we are trying to load IOS version 15.0.2a-EX5 on to. We can load the software without issue using TFTP, but when the switches boot, they all hang at the same point (see below).We've been doing this process for ye...

I am working on a set of Stratix 5400 (IE4000 equivalent) switches (22) that to me appear to have an inconsistent qos configuration.  I'm not sure if this is an actual "correct" configuration, a type of configuration that I'm not familiar with, or pe...

Greeting All, In our topology, we are getting huge CPU Utilizations in L2 and L3 switches. We are unable to reduce the same.Due to this issue,we are facing too much latency. Kindly help me to reduce the CPU utilization in switches.Below i mention som...

Hi All, I have a problem going on. I have a cisco layer 3 switch which is away from me. Both telnet and ping could work till last week but all of sudden I am not able to ping or telnet and an interesting thing is that I could ping other switchs (in t...