Switching

I'm struggling to understand connectivity problem between a switch and firewall.  The Nexus is located between the Core switch and the edge firewall. It's purpose is to divert traffic via ITD for content filtering.  My problem right now is that I'm n...

Hi, I have a site that has two C9500 as Cores and they have Dell Powerconnect 7024 ver 5.1.18.1 connected with the Core, the issue we are seeing is that the uplinks are not coming seen by the C9500. Just wanted to ask if someone has seen this issue. ...

So, previously I had a static IP address I could point putty at that would SSH just fine. I verified the address in a Show Run form I copied two days ago, so I'm not crazy. The config was written to memory multiple times so it's not that. Today, afte...

Hi, I have three CBS220-48P-4G-SW1 configured with LAG uplink consisting of two port between each of those switches.When I try to enable LACP on those LAG I get an error code 387.Does anybody got this issue and figured how to resolve it ?

Hello Professionals,I setup the NTP server in one of branch site and would like to make all network switches to see this server including other branches. - NTP server: 10.10.10.158 (placed in CST timezone, it refers pool.ntp.org) - NTP Client: Switch...

Hello,I have a cisco router connected to ISP using Dialer interface. I can access the web no problem, but have problems configuring port forwarding to a local computer from outside. Trying with tcp port 5555.Any idea what I am doing wrong? Thanksvers...

Recently I've seen some switches show ports with a status of "notconnect:"  What does the colon at the end signify?I don't have it documented where all I've seen it but I just now saw it on a 6 stack of WS-C3650-48PD running 16.12.06. About 85% of ou...

So, previously I had a static IP address I could point putty at that would SSH just fine. I verified the address in a Show Run form I copied two days ago, so I'm not crazy. The config was written to memory multiple times so it's not that.Today, after...

Switch A, Cisco 9300, VTP mode transparentinterface GigabitEthernet1/0/5switchport access vlan 3switchport mode accessSwitch B, Cisco 3560, VTP mode transparentinterface GigabitEthernet1/0/1switchport access vlan 3switchport mode accessVlan 3 (L2) vl...

I have a strange one. C9200 switch, 17.03.04b. Setting up a port for a postage machine. config as follows:ip dhcp pool cin-6address 10.3.6.2 client-id 0100.1b00.4116.4dinterface GigabitEthernet1/0/15description Postage machineswitchport access vlan 6...

Hi,I have been testing MST in my lab which has 3x Cisco Catalyst WS-C2960CG-8TC-L switches.I configured only MST and LACP on each switch and connected them in the ring topology. Test is to see how much time it takes for convergence in such conditions...

Hello,Pleased help me! I have configured macro auto execute on Switch C3560E as below but it does not work, The idea is that when a link change to up, the switch automatically assigns this link to VLAN 10, and then link down, switch removes this link...