Hi, I want to achieve a setup below A switch port will do qnq - for example vlan 1-4, these four vlans will be double tagged because qnq. Let's say inner vlan is 1, 2 3 or 4 and outer vlan is 100.But vlan 5 is an exception. I do not want to apply qn...
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Resolved! Netflow on Nexus 3048
I'm trying to enable Netflow on our 3048s. I set up the sflow using these commands: conf tfeature sflowsflow sampling-rate 4096sflow counter-poll-interval 60sflow data-source interface e1/15-16sflow collector-port 6343sflow collector-ip 10.10.128.12...
Hello,I have installed a switch (3560) that was from another site and changed all it's config and hostname etc and it is now live, however the syslog messages still see the old hostname, what could be causing this?Thanks
I believe I have a bad Cisco Nexus N9K-C92160YC-X. I would like it if someone could confirm it for me before I submit an RMA. I received this switch brand new from my supplier with a blank configuration. It booted up successfully the first time I p...
Hi, May I ask if SUP6T mgmt0 an out-of-band interface ? How can I set a static/default route providing remote access for mgmt0 ? Thanks!Todd
Hello, will the following config on a vlan interface on a layer 3 switch , stop me being able to ping 10.15.1.1 .......it is the default gateway for a vlan? ip address 10.15.1.1 255.255.255.0no ip redirectsno ip unreachablesno ip proxy-arp I dont s...
Resolved! Cisco iOS upgrade
Hello all, so in the office I have these models cIsco catalyst 2960xcisco catalyst 2960scisco catalyst 2960 Im confused on which version should I upgrade the switch’s for MD or ED Can anyone help? many thanks in advance :)
Resolved! Ping between Switch, no Switch - Router
Im doing ping from Switch 1 to Switch 2 using 172.20.34.90 and is ok, but when i want to do ping between Switch1 and Router 1 using 172.20.34.91 i can't Success rate is 0 percent (0/5)¿someone could help me with this? SW1en conf t hostname SW1 vlan ...
We've multiple switch stacks that use one or more WS-C3850-24XS switches. I was wondering given the leaps and bounds in IOS XE features, if there were any new software features that we could leverage to upgrade the firmware on these switches without ...
Hi,I capture a tcp handshake in wireshark. In it the TCP MSS value is 1452 bytes but the maximum tcp segment value does not exceed 1440 bytes througout the connection. What is the reason ??
Hi all,I recently bought two cisco switches 3560 and two routers (3825 and 2611xm). I also found in a bin a cisco router 887VA. I would like to use all of them to set up a cisco home lab. My plan is to connect them as shown in the picture attached. I...
When limiting the commands a user can run from command line (or web), can you limit which interfaces they can edit?I'm trying to limit my helpdesk to only being able to edit certain properties of interfaces that match a patter.For example, to limit t...
Good Morning !!We have installed a pair of Nexus 93216TC-FX2 . Doing tests for hardware resiliency, we removed a fan and we observed ports located in the module that fan was removed don´t working. After insert the fan the ports worked fine. We think ...
I have two vlans (vlan 1 & 30) on a cisco C2960-L switch. I can PING from vlan 1 to vlan 30 but I can not PING any node on vlan 1 from vlan 30. Both nodes on each vlan can successfully connect to the internet. My setup from ISP/WAN to the next hop an...
Resolved! Vlan NOT passing through trunk port
This should be a very basic fix, but I can't seem to find the answer. I have a Cisco C2960-L switch & Cisco 1921 router.I have configured port gi0/16 on the switch to be the trunk port. I have two vlans (1-30). Port gi0/1 on the switch is on vlan 30....
