Hi,I have L3 terminating on the core. It's in use by client devices. I need to modify that from /16 to /21Will i incur any downtime to clients when modifying that?From:interface vl 10 ip addr 10.10.0.0 255.255.0.0To:interface vl 10 ip addr 10...
Hi,I have an issue with a router's fast ethernet interface. The Interface says it is up, but line protocol is down. I have tried several times to get the line protocol up but i some how just cant get it to start. Please see attached config file for t...
I have one 3850 and 9300 switches that need to be interconnected using LAN cable.3850 supports 100Mbps, I have interconnected using LAN cable but the link does not come up. It gets into error -disabled.On 3850 I see a lot of input errors on uplink po...
Hi,We have 9606R switches with C9600-LC-24C line cards running 17.09.04a using QSFP-100G-FR-S transceivers connected to the 100G ports and they are giving us these errors and not reporting correctly as the 40G ports:*Dec 11 22:03:39.474: %TRANSCEIVER...
Hi Team,I have created the DHCP pool on L3 switch, Now i want to use windows server as DHCP server.What are the changes I have do on L3 switch. I have already created the DHCP scope on windows server, also I have mulitple VLAN so also need help with ...
Hello all I have a cisco 2960 switch and i want to setup voice vlan (50), i have the vlans setup. I am going to be using voip phone and computer connected to the phone. i have the voip phone port setup as: interface GigabitEthernet1/0/48switchport ...
I was facing an issue on my 6500 core switch with one supervisor where it would go directly into rommon and after booting it would lose all config when a power cut happens. after some digging i found out that the "remote command show boot" is differe...
Hi Guys,Suddenly the netflow on my 3650 switch is not working. I have compared the config from the one back in 2021, it's the same, nothing was changed. But when I compare to the other switch which netflow is working, I realized that the current entr...
Hi,If i need to add additional allowed vlans on trunk would i run command first on PortChannel interface or 2 physical interfaces?Thanks.
Hello everyone,At my job I was asked to configure the sending of logs to some SIEM servers within our infrastructure (Internal Servers) so we have Catalyst 9000 series Switches, Firepower 2100, FMC 1600 and Nexus 3k.In both the FMC/FTD and the 9000 ...
We had a port bounce this morning that caused a very brief outage to one of our voice hosts. Does anyone know how to glean any additional technical information as to why this port bounce happened.Dec 13 08:07:25.133 CST: %LINEPROTO-5-UPDOWN: Line pr...
Hello All,In my organization, we have two switches, SW1 (Nexus 6001) and SW2 (Catalyst 3750), connected via a Portchannel. Ports 23 and 24 are utilized in the port-channel setup on both switches. Everything was functioning well, but today morning I e...
My customer is having an odd OSPF problem on a Cat 4500X-32 switch with an Enterprise Services license and running cat4500e-universalk9.SPA.03.11.04.E.152-7.E4.bin software. Switch has 6 OSPF adjacencies, all on broadcast network types. Each adjacen...
Hi Guys,we have some sites plugged with C9300-48UXM switchs as a LAN connection,when we show the show interfaces description command we see more interfaces in the output that no exist any more in show interfaces status or in the running config:Tw1/0/...
i have three stack cisco switches 2960 and i added a stand alone cisco 2960 and i took two uplink from those stack switches which is port channel suddenly my whole internet goes down and when i remove the uplink i got internet back.
