I have a very strange VLAN routing issue and struggling to get my head around what the issue could be.Topology as follows.Cisco Nexus Core and a series of Cisco Catalyst Edge/Access Layer switches.The access layer switches are connected via trunk por...
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Hi,I have attached a sample network in this case there are two switch that is connected to other switch.Where should I configure STP or enable the STP? Or All switch device must have an enabled STP configuration?
Does VLAN helps to reduce Looping in switch?
Resolved! SFP-H10GB-CU5M/-CU3M
Hello, as no of my searches came to an answer I am now here to ask for help. I got 2x SFP-H10GB-CU5M and 1x SFP-H10GB-CU3M. I tried to use them to connect 2 WS-X45-SUP7-E to 2 servers. All the cables run flawlessly between the 2 servers. The 3M-cabl...
Hi Team , Will there be any impact to Cisco Network devices due to CVE-2022-27255 ?Regarding - CVE-2022-27255https://www.bleepingcomputer.com/news/security/exploit-out-for-critical-realtek-flaw-affecting-many-networking-devices/
How can I create and schedule an automatic backup in a Nexus 9000 device? Thanks
Switch GS350-8DP :If ethernet 5 and 6 connected to each others via Cat5 3mts cable? Observed continue packet is receiving on both port form switch. Is any way to disable traffic ?
Hello,We want to replace our core network, which is currently composed of 4 3850 switches (2 fibers and 2 coppers). These switches are stacked ( physical stackwise cable)I was looking to go on 9300 models, but one of my suppliers offers me 9500 model...
Hi Guys,Recently, I used Nexus 3524-XL as the backup coreswitch to replace my Catalyst switch. However, the Nexus switch cannot learn to establish OSPF neighbor with my 2 IOS routers. I use GNS3 Lab to emulate and get the same issue.However, when I ...
We have a customer that has a 3800 port-channel (MTU 1500) connected to a ISP, this ISP is sending MTU 9200. We only have one (1) interface enabled on the port-channel , when we enable the second interface we start getting output errors , and start ...
Resolved! 2960X stacking switches
Hello - is there any good videos or cheat sheets on configureing a two-stack of 2960X switches. I have one 2960X switch in production that is a standalone and I have to add another 2960X to make it a 2-stack. Neither is configured for stack mode. I w...
Hello everyone, I have a situation here with a nexus switch, once im applying the qos on interface its gives me the following error and link goes into error disable :Nexus-165(config)# int e101/1/11 Nexus-165(config-if)# service-policy type qos input...
Hi dears,today i read about switch that if a switch does not know destination address then it will broadcast the frame except the port from where it was received..But question is that if a switch has 24 ports and it has learnt MAC addresses of suppos...
Cisco Feature Navigator states "VRF aware IP DIRECTED BROADCAST" is only supported in Advantage. Can someone with Essentials confirm if IP DIRECTED BROADCAST is supported on a VSI (no VRF support required)?This has been available in the lowest level ...
Resolved! C9300 RSPAN not working
Hello. I'm trying to setup RSPAN to capture all the traffic come in and out of a switch port. I double checked all the configs but the traffic is not getting mirrored properly. Please see the attached diagram. The server is connected to a 9300 switc...
