Our Cisco 2960X switches display warning, the optical signal received by transceiver is too high. Is there anyone can explain and advise how to resolve the issue? May 21 00:14:47.726: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/0/27: Rx power high warning; O...
Forum Posts
A sideWS-C6506-E with Supervisor Engine 2T10GBASE-X port B sideN9K-C9336C-FX2QSFP28 port Can I connect these two devices in the same room ?If yes, what optics and cable should be used?
Resolved! 100MB over SMF?
Hello, I have two buildings which are connected via Single Mode Fiber (SMF). In building A, I have a WS-3750X-12S-S. In Building B, I have a device which ONLY supports 100MB connections, either TX or FX. Constraints: I'm stuck with the SMF fiber b...
This topic is a chance to discuss more about the installation, provisioning, operation and best troubleshooting practices on Cisco Dense Wave Division Multiplexing (DWDM) transport systems, with particular focus on NCS 2000 series. This session wil...
XR fam, We have a few ASR 9006 chassis that are currently running some MOD-80s (Typhoon) for 1- and 10-Gig MPAs plus some 100G line cards (like the A9K-1x100GE-TR). Some of the 100G line cards have 40-kilometer ER4 optics in them (CFP-100G-ER4). We a...
Hey Guys, I have set up my Meraki switches in my server room to test my current environment and everything works flawlessly. When I hook up my Meraki switches to my existing environment one works and one doesn't. The only difference I can find is the...
Currently I have a SW Cisco Catalyst 2960X-48FPS-L, which has SFP Gbics and a fiber of 10 GB to connect from this SW to another Cisco Catalyst 2960X-48FPD-L which supports SFP+ 10 GB. Could you help on choose the right tranceiver to uplink 1 GB to 10...
Hello friends. I bought a CISCO - DS-C9124-K9. Now I had to detected that it was a Fiber Channel switch.I also bought 2 network cards. Unfortunately also fiber channel. I will send the network cards back.Does not matter. But is there a way to insta...
Hi Community! we have 2x C9500-48Y4C directly connected with QSFP 100G LR4.One of the C9500 is running IOS-XE 16.9.1 (Hostname: B-02) and the other 17.3.3 (Hostname B-01).AOC Cables working perfeclty. The links between the devices won't come up sinc...
Hi Everyone,TMG Matrix contains more SFPs comparing to the ones are listed on CCW? shall I trust TMG Matrix?
I am getting no link between a C9500-48Y4C and C3650 (via trunk) when I attempt to use two different optics at either end. Can anyone provide insight on anything that I am missing, because at this point I imagine there may be programming issues on th...
Are there Cisco switches that can operate in special environments?In particular, i'm looking for a switch that can operate at less than 1% humidity.
I have a WS-C2960X-48LPD-L with two 1 GB uplinks/downlinks conected to Cisco two 4500 backbone devices. Recently we installed Om3 fiber over all building and we tried to install SFP-10G-SR modules on the tengigabit ports. One of them (1/0/1) works t...
I have a fiber connection between a Cisco SBS350 switch and a Netgear. Everything was working fine for several weeks until I decided to upgrade the Cisco firmware. After the upgrade the fiber port is showing "operationally down". I rolled back the fi...
Hi,The end device is a Relay which has fibre interface specification as 100MB ST Multimode 1310nm. We want to connect this relay device to Cisco Switch IE-4010-16S12P to one of the SFP port. As such we intend to use Cisco SFP adaptor GLC-FE-100FX whi...
