Does this point to an issue with an SFP? We have a 4500-x vss stack, through which runs the heartbeat for a bunch of vrrp groups upstream, both routers have been going active due to loss of heartbeat. One of the switch uplinks has a tx power of -10db...
Forum Posts
Hi,I have 60m of OM2 fiber linking two 3750X equipped with 3CKX-10G-NM.I'm using SFP-10G-SR (in TE ports, not in GE ports).But I'm not getting connection between the two switches (No led blinking at all).Is there a compatibility problem somewhere in ...
1000+ fiber connection = one flex circuit？If you have ever been to data center, then you must have a deep understanding of the following cabling scenarios.If an optical circuit can improve such a cabling environment, are you interested?The optical fi...
Hello Forum,my company will update there old Procurve Layer-2 switches with new Cisco CBS250 or CBS350.We also need new Transceiver with multimode fibre. When I look at the compatibility matrix I think that the GLC-SX-MMD would work fine and original...
Resolved! Cisco catalyst 9407 with C9400-SUP-1XL
Good morning !!We have a pair a Cisco Catalyst 9407 with C9400-SUP-1XL. Connecting between them through 10GB-SR we are receiving the same log frequently : Sep 22 11:19:15.176: %SFF8472-3-THRESHOLD_VIOLATION: Te2/3/0/1: Rx power high warning; Operatin...
Resolved! Cisco Catalyst SFP support 9200
Hi All I have a dilemma, I have some low speed locations like a VoIP solution for instance and also some locations with low amount of users. I have to switch stack and duel link for redundancy back to the distribution from the access but this will ...
BRIEFI have a 1000Base-LH transceiver (Cisco GLC-LH-SMD) which sees Receive Power and brings up link when inserted into several devices … but does not bring up link when inserted into several other devicesThis is novel behavior to me: Would anyone h...
Does anyone have any indepth experience moving form traditional 10G Waves w/ DCU in the path to a colorless, coherent path that includes 100/200G TXP and and/or 400G T5 Cards w/ OTN Switch. Right now we are running 11.1 ONS Code and sounds like we ne...
Resolved! IE 2000 sfp compatibility
Hello,I have a customer that is wanting ot install several Cisco IE2000 8TC-G switches. They are planning to use fiber optic SFPmodules to connect up to their network. They have ordered GLC-SX-MM-RGDmodules for use in these switches. Could someone pl...
Hello, Have few CWDM connections where we're lacking of power. Currently we're using 40km and 30KM reach CWDM SFPs. But there're some links where RX power doesnt reach certain levels, and errors on interfaces starts to occur. I think this could happe...
searching out comments from oldsters who have examined or are walking cisco well matched 100gbe optics in some of the newer product including the nexus 93180yc-ex and catalyst c9500-48y4c. use of one and 10gbe 1/3 birthday party optics appears to be ...
Today when deploying our new migration we tried to connect existing 6506e switch having xenpak er to our new 9600 having sfp10g-er but the link did not work so my engineer replaced sfp10g-er with zr and link connected. Do we need to change 6506e xen...
Experts, GM to All. I have a situation which is a bit peculiar and looking for some advices. I have two sites - both are roughly 50 Kms apart. both are OT ICS systems sites. I am using somewhat Old Fibre cable which was laid say 10 years ago. I got...
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...
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?
