Optics and Optical Networking

I am replacing my core Dell switches with some Cisco 9300 and Nexus 9300 and need to acquire several 10Gb SFP+ transceiver fiber modules; are there any recommended vender modules (generic)in the market that are not genuine Cisco modules but will work...

Hello, My knowledge on switches is non existent. Please bear with me.   Problem: We have an existing Single mode fiber connected at the facility, and are adding the C3850-24S-E switches as core switches and 3650s as distribution switches.   What Tran...

I have below setup :   R1->R2->R3-R4   R1 : Loopback 0 (192.168.1.1) R1 till R4 is in /30 subnet (10.11.x/30) means R1 to R2 (10.1.1.1->2), R2 to R3  ((10.1.1.5->6) etc. R4 Loopback 0 (172.16.1.1) ! R1#ping 172.16.1.1 source Loopback0Type escape sequ...

Hi everyone, Hoping someone can point me in the right direction why an SFP is being detected as unknown, I believe it should be working.   We have inserted 4, SFP-10G-ZR-S in to a N7K-F132XP-15 module. The Nexus 7K is running NX-OS 6..2(16). When I b...

We have a DWDM ring with 4 nodes A, B, C, D. in order. Right now we see error " DATA-CRC Bad packet count Exceeds Threshold" on node A and and C 10GE_XPE card PMM port. both direction is "Receive" and Location is "NEAR" which the the node B in betwee...

Hi every one ...   this screenshot of interface join with other device by Fiber-optic cable , in this situation the port is down , but my inform about how i can estimate the power of signal ? how i can know the power is good and doesn't need adjust ?...

Hi,Does anyone know optcore?  Their optics prices are very good but I am weary of purchasing as I haven't found solid reviews. Inputs appreciated.

I am in the process of migrating our network devices to our new ISE servers coming from an ACS setup. We have a bunch of Cisco ONS DWDM 15454 that used to run RADIUS that we would like to use TACACS+ on instead. My trouble is i am not able to figure ...

Hello everyone,   This is my first post on the support forum.  Thank you in advance for any input you may have.   I would like some clarification on fiber lengths when using a SFP-10G-SR module.  The link below indicates it supports a link length of ...

Hi,   I have two servers in a data centre (one is a backup) linked to the same 3750 switch.  I have another server in a building roughly 200metres away connected to it's own 3750 which is then linked to the data centre 3750 via a 1000SX SFP on multim...

Hi,   I have a question about my Router 2901. I have connected 3 WIC Serial. 2 of them are HWIC-4T. The third one is a HWIC-2T. When I do a "Show Interface Se0/2/0"it says "Hardware is WIC MBRD Serial" Then on the other 2 says "Hardware is HWIC-Seria...

  First post guys so please be patient if I mess up.I need a solution to connect 2 LC patch leads within an Exe enclosure.One lead comes from a Westermo MCI-211G media convertor fitted with a Cisco GLC-SX-MM SFP transceiver, which is located within a...

Hi All, I am facing a weird issue with auto-negotiation in CISCO 3750 switches. I have configured one switch port as duplex full and speed 1000 in both the switches. Now when I am connecting these two switch ports with RJ45 cable the link is showing ...