Switching

Hello all, I'm trying to configure Layer3 subinterfaces on port-channel on a C9500-48Y4C with version 16.9.4. However it seems the feature is not enabled or supported. When I try to apply this interface Port-channel10.3000encapsulation dot1Q 3000ip a...

Hello,I have current firmware on 15.2.2 E7 and trying to do firmware upgrade to 15.2.7 E2 (recommended), is there any firmware hop that is recommended for this upgrade? Thank you,

So I'm trying to ping hosts within the same vlan across switches and can't seem to get it working properly. I have set up Vlan 10, 11 and 12 - only hosts in vlan 12 are able to ping each other. I am very new to networking and especially switching, so...

When 802.1X config is applied to the port I can no longer see the MAC address on the interface.  When config is removed the MAC address shows up on the port.  After applying the config I have bounced the port and the device however it still does not ...

HELLO Everyone Two sites with their own core sw running with their own vlans connected via layer2(access port in core sw) to carry transport vlan for each router to run routing between sites.STP on transport vlan between core switches is running.All ...

Hello, Wondering if any one else has come across this issue, we have a number of 2960x switches with some being stand alone and some in a stack with the following interface configuration: switchport access vlan 101switchport mode accessswitchport voi...

So, i've hit a bit of a stumbling point - Im currently doing some testing with the nx-osv 9k switch with KVM/qemu. This is more so for lab work than anything else, however I've seemed to run into a stumbling block. When using KVM/qemu as my virtualis...

I have a 2 core switch catalyst 4500 connected to Nexus switch by Ether-channel and the gateways for VLANs created on the Nexus switchnow the end-user which connected at Catalyst 4500 can`t access to other users at other VLANs and also can`t  ping  t...

Hi guys I am trying to configure authentication login with radius server. The configuration is working fine with 2960, 3860, but something wrong with my 4507 - From 2960, 3860: user privilege 15 and privilege 1 are authenticated right, i can see ever...

Hi, I would like to know the Cisco supported devices for IP FRR.Also is this a Layer-3 routing protocol or Layer-2 protocol?

Hi Guys,I wasn't able to summarize these: 192.168.1.0/25 is subnetted, 2 subnetsO 192.168.1.0/25 [110/2] via 192.168.3.130, 00:03:58, GigabitEthernet0/0O 192.168.1.128/25 [110/2] via 192.168.3.130, 00:03:30, GigabitEthernet0/0192.168.2.0/25 is subnet...

hi dear all!I can ping computer IP from Switch but I cannot ping from my computer.my computer VLAN 100 My IP 172.21.12.50another computer VLAN 200another computer IP 172.21.202.50note: in bout switches, I created 100 and 200 VLANs how to solve this p...

I have a Cisco WS-C3850-24P-S switch which is missing recovery image (c3850-recovery.bin) on the recovery partition sda9. The recovery partition is a read-only partition. Is there anyway to copy c3850-recovery.bin to sda9. ?