Switching

Hi All,   Is anyone aware of any bug on the Catalyst 9K series..IOS 16.09.02...i've got a multiple 9200/9300 series on my network that seem to go into ssh disabled mode after a reboot. we are able to reconnect once we made the following changes via c...

Hi guys, I'm having trouble accessing a new cisco catalyst 1000 48P-4G-L switch.Was trying to do a most basic setup so I could upgrade firmware via web interface.Was following the basic setup wizard and had put in the initial Hostname, password etc.S...

how can i block youtube from cisco L3 switch completely for all system.

Hi,For some time now, we've been experiencing audio quality issues during certain communications with IP phones (CUCM). We have voice gateways (such as ISR4331) connected to both our CUCM and our operator (ISDNoIP).Could you please let me know if QoS...

I need to factory default a pair of 4500 switches in VSS mode. This is how I plan to do it. 1.  on switch 1  execute redundancy force-switchover2. write erase on the switch 2 and reload3. this should failover to switch 14. write erase in switch 1Is t...

I'm finding this issue on various stacks in my environment.Example Flash-1: is showing "1337982976" free, but Flash-4 & 5 are showing "825753600" free.I ran "install remove inactive", but nothing to clear.I tried compairing the files, but I'm not fin...

Hellowhat is main different between:service instance 11 ethernetencapsulation dot1q 11interface GigabitEthernet4/4.11encapsulation dot1Q 11and service instance do tagging for packet with no tag like access port ?thanks

Hi Guyswe have faced the upgrade process of Catalyst C9500-48Y4C in SVL stack.Is there any method to perform upgrade without reboot of both switch or reload them in turn ?BrRashad 

Hi,On old nx-os like 7.0(8)N1(1) local admin users were not able to login to the device when tacacs+ is working. This behavior seems to have changed on newer version like 9.3.10 and 10.2.4 for examples. Indeed, with same configuration than older vers...

I am facing a strange issue in which the same vlan host can't ping each other but when on the trunk it's pingable. even inter-vlan routing rule is configured on the firewall.ERP_Server------switch---trunk_link----switch-----PCwhen the server and pc a...

Hello all,While replacing PoE antennas, I noticed that the switch no longer provide power to the various ports.Previously there were 4 devices connected to it and checking the logs I found this:Jun 21 00:39:54.011: %LINEPROTO-5-UPDOWN: Line protocol ...