Networking

Understanding When to Stop a Catalyst9000 Switch

Thank you for your help.There is no power button on the Catalyst9000 switch, but is it okay to pull the power cable out of the switch when it stops?In the case of a ISR4000 router, a soft shutdown is required by the reload command in advance, but I w...

GRE Tunnel streams

This is very high level, wanting to know if this is possible. We're the middle man. I don't have access to or knowledge of equipment or configs on the other providers. Currently we are handed off a GRE tunnel to a router. We have an ipsec tunnel ...

Bizarre DHCP snooping causing spanning tree issues on 3650s on reboot

Can someone explain what could possibly be causing the problem we've been seeing recently.We have had to implement ip dhcp snooping and it's having a bizarre interaction with spanning tree when certain 3650 devices reboot.Maybe it's because we're wri...

Need help with packet loss on 6880-X VSS pair

I've got a VSS pair of 6880-Xs in a VSS pair running 15.2(1)SY6 as the network core switch connecting to various IDFs with a pair of fiber in a portchannel. We also have some monitoring software that pings the IDF switches periodically go see if they...

ISR1100 Problem with ICMP when sla are enabled

Hi, I have a ISR1100 (C1111) with two connections: fiber (GiE0/0/0) and LTE (Cellular0/2/0). Config excerpt:ip route 0.0.0.0 0.0.0.0 100.64.107.1 name primary track 1ip route 0.0.0.0 0.0.0.0 Cellular0/2/0 10 name backup!ip sla 1icmp-echo 8.8.8.8 sour...

Qos between remote router and switch

Hi support,i want to configure the Qos for remote users to access applications on main site. i can do classification, marking and so on.my issues is on the remote site,First, where to do the classification and marking? swicthes or remote router?Secon...

Migration with vPC, SVI, and HA FW

Hi all, I am studying the best way to migrate two N7k to N9k . The physical topology is depiceted below:During the migration I will create vPC3 for L2 extention. The N7k swithes are in VPC peer-link and create a vPcs with a couple of FW in HA. The co...

C1111PWA Router Not Recognizing Any Clients

I am setting up a C1111-8PWA-WS for the first time. After not being able access the internal wireless card I decided to set up without it. I have a Cisco SG350-28P switch that has POE for the AP's. Trying to set up the basic unit with just the rou...

how to check maintenance contract of switch based on the serial number

hi, can anyone please help advise how to find out the maintenance contract based on the switch serial number? I used the following tool to check warranty status, but can't find the contract number and the details of the warranty, thanks in advance.De...

CME sending internal phone numbers to external sip server

I'm playing around with a 2951 and a few phones that I have laying around in my basement. Everything works fine with the SCCP calls, but when it comes to the SIP phones, I have outgoing call issues. The system is sending the phones' extension numbers...

Switching ports based on Incoming Data

Would anyone know a way to set up a switch so that if port 1 had incoming data, port 2 is on standby. But when port 1 no longer sends data for 2 seconds, the switch changes port 2 standby mode to active. I tried to use switchport backup for this, but...

How to clear virtual-access interfaces

We have a FlexVPN Setup where Spoke2Spoke connections get created dynamically with the help of virtual access interfaces. So if i want to edit something within a virtual-template, i get the error that it is locked:router(config)#interface Virtual-Tem...

Cannot configure routes in Cisco ASA Firewall

Hi,I have deployed Cisco ASA Firewall in Azure and I am trying to configure the routes from Inside subnet to Internet. However, there is a default route to 0.0.0.0 on Management interface and it is conflicting with new routes I am trying to create. I...

Pair of 6880-Xs with strange VSS config

I have a pair of 6880-Xs in a VSS pair with a strange configuration. I wanted to get some opinions before changing anything. The switches are connected by MM fiber as follows:Te1/5/1 <-> Te2/5/1Te1/5/2 <-> Te2/5/2The port states are:Te1/5/1 - connect...

Ask Me Anything: Cisco Catalyst Center Assurance

Ask Me Anything Event Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, September 23, 2024 through Friday, October 4, 2024. Our colleagues Arpita Dash, Prateek Upadhyay and Udhay R. will be waiting to...