Switching

Hello,   What is the practical difference between these two:   1) connection with single optical fiber using bidirectional SFP vs 2) connection with duplex optical fiber using duplex SFP ?   Is it the simplex bidirectional bidirectional SFPs is more ...

i find cpu ultilization is high 97% in access switch at Fed process then find its queue called broadcast  then find the port connected with distribution layer switch N7K then, what should i do ?   TX 19958467910 unicast packets 2086888451 multicast p...

Hello,   Just a cisco novice that have a few questions about the cisco 891w router, and hope that I can get some expert answers.   I've just purchased a cisco 891w and use it as my home router/gateway via an external hdsl modem. I've managed to get t...

                   Hello I have been trying to get this working all day.  I am using a 2800 ISR router with voice capabilities.  I am trying to use Voip.ms for over a sip trunk to make calls but i get a voice message that says "this number has not ye...

Hi guy I would like to know      Which switch stack is selection master from ? if it by default configure and it the same priority. It selection from .. such as   uptime , mac address  whatever...     And i have any question about stacking I have 2 s...

Hello friends,   I am trying to establish a 10 GB fiber connection between two Cisco switches.   Switch 1 - Cisco WS-C3650-48PQ has 4 x 10 Gigabit Ethernet with SFP+ uplinks Switch 2 - Cisco WS-C2960X-48FPD-L has 2 x 10 Gigibit Ethernet with SFP+ upl...

Hey all. Would like to share an issue and see if anyone else has had this issue and could shed some light on a possible fix.   Got a WS-C2960X-48FPD-L switch that is failing to load iOS c2960x-universalk9-mz.152-5b.E.bin   We have this iOS image runn...

Hi all! I have created seral port extender over IP based on Cisco 28xx routers and HWIC-1T + CAB-SS-232FC/MT cables pair. Here is a picture of my network setup BSTUN protocol is used in asynchronous mode (yes, I need async). I took this Cisco's sampl...

We have a pair of Nexus 5672UPs that occasionally experience packet losses, especially when backups are taking place to devices connected to these switches. I've made a list of what devices are using what ASIC. Is there any easy way to see if any one...

I have a nexus 9000 how can I automatically do a backup using the ftp.   This is the ftp:   copy running-config ftp://10.154.5.21/CRRHR-CORE-PRI.txt   But I would to do that automatically

i try to ping a server hostabc, hostabc ip address is 10.128.*.*, now when i ping the host, it says reply from 192.168.20.5,destination host not reachable, anyone know the reason?

Hi Friends, I hate the fact that I have weak memory and keep forgetting important information as I have read QoS multiple times but since I don't work with it a lot I keep forgetting it :( Anyway, I have a Network Consist of Cisco Layer 2 Industrial ...