Hi all, Newbie to networking here. I'm having an issue where I can't access a C3750 switch on a switch stack. There are four switches in the stack. When I try to telnet into the switch, I'm getting "% Connection timed out; remote host not responding...
Forum Posts
Resolved! vPC & non vPC VLANs
Hello,I know that best practices is to have a dedicated port-channel for non vPC VLANs and not to allow those VLANs in the peer link. My question is, will it still valid to allow vPC and non vPC VLANs in the peer link? Will that have impact on the pe...
Greetings, I have 4 offline self contained networks. They are setup as such: Network 1: Windows Server 2016 As Domain Controllers And Windows 10 (1909) Clients Connected by Cisco C9300-24Ps.Network 2: Windows Server 2016 As Domain Controllers And Win...
Resolved! L2 switch management
i have a layer two switch with vlan 30 connected to a firewall as its gateway i configured an svi on vlan 30 to be able to manage iti can reach its from within the subnet but not from outside interface GigabitEthernet1/0/11 switchport access vlan 30...
Hi, We've started using 3650 switches, and on two occasions when we've added a new member to the stack the stack has rebooted. Scenario last night: 1 x 3650 powered on and active, running 16.3.6. Connected the stack cables to link in two more switch...
hello guys I wish to update my switch to this version c2960x-universalk9-mz.152-7.E2, however I saw the reviews and 2 people say that the update didn't work. Does anyone updated to this version?
Hi A switch default behavior is , if QOS is not enabled , to trust DSCP marking( or just pass through Marking) . But if I enable auto qos on one interface all the other interfaces are automatically in NON trust state and start rewriting DSCP to 0.Her...
I have two cisco Nexus 93108TC Chassis Im having problem with the traffic going in and out the interface, please let me know what I missed.Thank you in advance.From the logging:zhongxinjifang9300-1 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel2: firs...
Resolved! Catalyst 4948E IOS images 15.2
I'm going to upgrade one our our Catalyst 4948E switches, but when wanting to downloading the latest 15.2 image, i'm presented with following choices and have no idea what the difference is between the 3 of them What is the difference? I'm puzzled.
Resolved! Require help on P2P link load sharing
We have two p2p links from diffrent ISP in between our data center and our HO, connected on two different routers at both ends, we want to load balance traffic on these two links from both ends. We are using static routing and HSRP for failover. Plea...
Hi all, Normally if the customers do not want to connect to the internet then SLR is one of options in my understanding.So now I am looking at the the following URL which is about SLR operation below.https://www.cisco.com/c/en/us/td/docs/switches/lan...
Hello everyone.I have a factory defaulted SG300-28PP switch. It has been updated to firmware version 1.4.11.5, boot version 1.3.5.06. It has been functioning perfectly for the past few months (or, at least I thought so). Yesterday I moved it from a c...
Hi, I have a challenge with a client,here is the issue.They have 2 aggregate switches, SW1 and SW2 in branch A. SW1 got damaged during lightning , so they switched to backup SW2, now pinging the switch from branch B using cmd it is not reachable but ...
I have 3650 switches. one of the switches where downstrem switches are connected was rebooted and all rest downstrem switches went unreachable as the trunk ports blocked ..can someone help to understand why this is happening and how to resolve it. 00...
Hi All,Want to know about broadcast packet troubleshoot.We are suddenly observing high broadcast packets on interfaces. Can anyone pls explain how much broadcast packets are normal on an interface (% in terms of total traffic).Which all show commands...
