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'm using an old Cisco 3750x as an aggregator switch for a number of other switches which are configured with an RSPAN vlan. The Cisco 3750x then has the uplink port connected to a passive network monitoring sensor which ingests all the SPAN traf...
I recently replaced a stack of switches with C9300s and encountered an interesting UDLD issue. After reviewing with seniors on my team, it seems it may have had something to do with the order of operations.Switches were uplinked via two 10G SR optics...
Hi,Trying to understand what this command is stopping exactly. I've looked through some documentation, but not understanding the purpose of it completely. Can someone give an explanation on what "no ip telnet comport enable" is disabling? And, if it ...
Hello everyone,Here is my problem :%SYS-4-CHUNKSIBLINGSEXCEED: Number of siblings in a chunk has gone above the threshold. Threshold:10000 Sibling-Count:45558 Chunk:0x20EB71D0 Name:Elsinore TSIP P -Process= "GNSS Periodic Process", ipl= 0, pid= 92Ver...
Hi Experts,Need your help one more time I am configuring EEM script for switches backup but i facing below errorsConfigured command - action 25.0 cli command "copy running-config ftp://CISCOSWITCH:Passwd@192.168.10.10/SWITCH/IN/$h/$h-$t abc.txt"Error...
I had an issues with CIsco 4506 generating an error like this below:Jan 16 17:06:02.888: %SFF8472-5-THRESHOLD_VIOLATION: Te1/3: Tx power high alarm; Operating value: 8.1 dBm, Threshold value: 3.4 dBm. So the above port is 10G port with sfp module ins...
Resolved! IP Source Guard
So, I am having some issue with configuring ip source guard. Here is the configuration results on SW:Switch(config-if)#do sh ip ver soInterface Filter-type Filter-mode IP-address Mac-address Vlan--------- ----------- ----------- --------------- -----...
Can someone help me figure this out? Unable to ssh from C9300 to a C1000 and it complains about hmac, kex and pretty much everything else. I am not clear on what I need to change, server/client on either to allow this to work? %SSH-3-NO_MATCH: No m...
Resolved! C9200L-48P-4x DATA stack an not power
Hello,Could you please confirm the C9200L-48P-4, like other C9200 or C9200L can do only DATA stack (StackWise) with C9200L-STACK-KIT, and this not possible to have power stack ?Do you have any Cisco document that specifically mentions that ? I cannot...
does 8300 edge router supports 8 level Priority Class Based Queuing Per IP address/subnets, ports, DSCP and ToS bits
I have read at least 6 links on Cisco Systems to try and really understand the difference between UDLD Enable and UDLD Aggressive. The more I read the more I am confused. My final understanding is as follows and I wish someone to correct me if my und...
We have a stack of 3 IE 9320 switches connected. We tested by powering off each switch and how the end device behaves. While powering off, we see one ping drop and while switch is powered back and then when it gets added to the stack we see intermitt...
Hi all!Scenario: A LAN with three devices(A,B,C). Device A sends an ARP broadcast and device B receives it, but B is not the traget IP, and B currently has no ARP cache entry for A.My question is: will device B ignore this ARP, or will it create a ne...
GreetingsI have a Cisco 9300X running IOS 17.09 and I have a case where I would like to capture RSPAN traffic from another switch but also capture traffic from the local switch. The capturing device only has one monitoring interface, otherwise this w...
Resolved! 9200 Stack of 2 Switch IOS upgrade.
Very good day pros.I have STIGs compliance to upgrade 9200 (Stack2 switches) from current IOS (cat9k_lite_iosxe.17.12.05.SPA.conf) to (17.12.06). I have have uploaded (cat9k_lite_iosxe.17.12.06.SPA.bin) and waiting for for the scheduled down time.My ...
