Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
Hi, I have problem isolating hosts on same broadcast domain using l2vpn and bundle interfaces. This is configuration from two asr9001interface BVI2vrf testipv4 address 10.0.0.2(3) 255.255.255.0!router hsrpinterface BVI2address-family ipv4hsrp 2addres...
Hi thereI'm facing a critical problem with my cisco core switch, the ping is timed out for 4 or 5 times causes the whole network to freeze, which impacting the connected laptops or pcs to hang for some seconds, the show version output is:Cisco IOS So...
Hello,I have a network with 16 VLANs with network IPs that range from 192.168.10.0 to 192.168.160.0 connected to a ISR4331 router with RoaS set up to allow Internet connection. But I want those VLANs to not be able to communicate with each other exce...
I would like to monitor via snmp v2c (with centreon) all ports (Twe1/0/x) of a C9500_48Y4C switch (Stackwise),but I can't find the proper OID (OperStatus). I tried Cisco MIB locator without success. How to proceed in order to identify the correct MIB...
Hello guys, I hope you are all good ! I experienced very very strange behavior which is totally against my QoS knowledge. As far as I know Queueing methods and cbwred is active when there is congestion . And policing is drop packets based on the s...
I have two different networks, some times staff max them by mistake by using ethernet cable between swatches
Hello,We will replace soon 2 C4500 by 2 C9400 chassis.Currently we have HSRP set and root guard on the uplinks of both core switches. But for my side using root guard will indeed prevent any access switches to take the root place, but it can also blo...
Hi, What is meant by "Static" and "Dynamic" entries in the mac address table of a Cisco 2960 switch when I issue the command-"Show mac address table"?Has this something got to do with port security command , but I have not configured any static mac a...
Resolved! roouting
Am i right when Cisco port accept BPDU port goes to err-disable ?
Resolved! Cisco Switch WS-C2960X-24PS-L
We are using Cisco Switch WS-C2960X-24PS-L and Fortigate Access points 431F.431F total power consumption is 24.5Watt.But issue is when i connect 3 access points with this switch access points auto restart.So how i configure POE on this switch so that...
Hi, I have a question regarding Cisco Stack wise switch renumbering.I have a couple of C2960X stack switches (number 2 and 3) and I want to renumber of the switches in the stack from i.e. from 3 to 1 using # switch 3 renumber 1 I understand the stack...
Hi recently I became aware, through some customers PEN tests, that our 3850 aggregation SW is answering probes, requests for https access on broadcast addresses. For example we have customer A on vlan100, ip 10.10.10.1/32 customer is 10.10.10.2/30. T...
I have 9200 switch with endpoints connected to it. One particular port is frequently going up and down. [Line protocol changes state to up / down]. This port is connected to a PC. How can I identify the root cause of this failure? It's not related to...
I have a new CBS350-16T-2G, latest firmware, I'm a NOOB on managed switches.From factory resetI connect two PC's on the same subnet but can't ping between them.VLAN1 is on 192.168.1.254, I've added this to the gateway of both machines, each can ping ...
