Switching

Hi all,I am not sure if this would be better in previous conversation or being specific to some particularities, better to build a new one.What I would like to do is to do a full upgrade of a Cat 3850+ currently running on a old 3.3.0 SW and bring it...

We have two sites that we would like to send all mirrored traffic to one of the port on site1 for traffic analysis and monitoring using SPAN and ERSPAN.  SPAN for Site1 and ERSPAN for Site 2.  These core switches are running Catalyst 9400 series. See...

Hello,I'm fearing that I've rendered this switch useless. I've attempted to flash a new IOS to the device. In the process, I only have 'boot' as an option when I break the boot process, configure t yields no ability to configure the switch. switch: b...

Layer 3 IP checksum - recalculated to include changes to IP headerLayer 2 frame checksum - recalculated to include changes to the Layer 2 and Layer 3 headersCan someone explain the diffrence between this 2 processes ? When Layer 3 recalculation check...

Hi, I try to produce an situation where i have 2 orphan hosts. Each orphan host is connected to a leaf switch (for example leaf1 and leaf2). So host1(mac: 0c:89:34:41:00:00) is is connected to leaf1 and host2(mac:  00:50:79:66:68:00) to leaf2. Leaf1 ...

Hi guysThanks all again for your help...Any recommendations for extracting this software version already installed in Catalyst 3850+ and needing to install in another same Catalyst 3850+ who is running a different version. Tried to sync them across a...

Hi all,I've got a serious problem witch my Cisco C9300 devices.While configuring the AAA and following commands:*--More-- aaa new-modelaaa authentication login default localaaa authorization exec default localaaa authorization network default localI'...

HI, i want to establish 100G connectivity between ASR1006-X with C9300X-24Y-E. At C9300X-24Y-E side i have chose Catalyst 9300 2 x 40G/100G Network Module QSFP+/QSFP28 (part number C9300X-NM-2C) What exact components (RP, SP, Line card slot, fiber sf...

Hi Community,I have a WLC 5508, it has a WIFI defined on vlan 19, and it has a vlan 19 interface with IP on the same controller:DHCP principal with IP 10.51.0.200 if it works.But when we switch the secondary DHCP 10.51.132.200, it does not assign DHC...

Hello, I try to connect on a new IE 1000 switch from a Cisco 809 router. Default IE1000 on ssh don't have a username and the password is cisco. when I try to connect from 809 in cli with ssh -l "username" 192.168.1.254 i don't know what must i use in...

I have installed SSH to use as an encrypted method of logging onto my routers. It works. I also enabled the SCP server on the cli, router config#ip scp server enable. (be careful here because scp has a slight vulnerability where a user with a rest...

Looking for advice on my current setup workaround:1. My home network employs a Netgear router that unfortunately lacks VLAN support. This router connects to my ISP.2. The router's LAN is configured as 192.168.15.0/24 and provides internet access.3. I...

On a 3560 I have (2) syslog servers defined. Both are up and operational and reachable via ping from the switch.  However on the second defined logging server on the output of the sh logging command it states a "link down" (see below for command outp...