Hello,I configured a link trunk between a 9200 and a 9500 with SFP+ (SFP-10GBase-LR)but it does not work. the 9200 sees the 9500, the 9500 does not see the 9200 (with "show cdp neighbors"). On the 9500, 0 packets input...When I test with an rj45 port...
Forum Posts
Resolved! Vlan UP line protocol Down
I have a 3560 switch newly installed and have created a mgmt VLAN (999) but the line prot is down and won't come upVlan 1 is shut down and 2 other vlan's exist Vlan 2 (user data) and vlan 700 (voice) which work fineUsers are plugged in and working, v...
Resolved! Exporting PCAP
I am trying to run a packet capture on my Cisco WS-C3850-48P, firmware 16.3.b.I seem to have gotten the actual capture working, but am just running into issues exporting. Here are my commands monitor capture mypcap access-list CAP-FILTERmonitor captu...
i have a brand new switch, was attempting to add the new ios on it however when i restarted the switch. It would not load up due to it failing to load packages.conf. Here is what the switch reads:boot: attempting to boot from [flash:packages.conf]bo...
Hello AllI am looking for Cisco IOS Software upgrade instructions information for the following devices Cisco 7710 Switches,Cisco 9200 Switches Cisco 5515 switches & Cisco ASR 1001-X routers. Can you tell me where i can acquire this information
Resolved! POE problem on 3650 switch
Good day.I have a WS-C3650-24PD switch, SW Version 16.12.4. I noticed this problem with POE. If you issue sh and then no sh, the POE cannot be provided. The only solution that fixes the problem is to disconnect power from the switch. I have over 300 ...
Hello friends, I have a Catalyst 2960-L 24 port switch. When it turns on it gets a blinking amber light and then it turns on. I tried to access the switch through the console port and when it starts at the terminal, some strange letters appear. Would...
We have a Cisco 4321 that provides DHCP and DNS to our entire network. I would like to update the dns settings (from internal servers) to Open DNS. I can connect to the 4321 with telnet. Can someone walk me through how to make this change using te...
Hi We have two groups of ip address like the below, most of which are identical between the two groups. But we need to find out which ip address only exist in one of the two groups. Anyone can share python script? Thank youGroup1:10.1.1.1, 10.1.1.2, ...
Hi,Do the Cisco Catalyst 1000 series switches support QinQ? If so, what models support QinQ?
hey .. so I'm a network student and I have to write an essay on this question and I tried to search on it but I'm getting nothing can you guys help methe question is : On what does a layer 2 switch depend in forwarding data? On hardware IC's or on s...
Hi masterI am looking the safety way for changing STP mode from RSTP to PVST+There 50 Switches running If I change mode one by one. Any risk ? or any better way to do it. Note * I had check no blocking state on any interface.
OThe problem: ensure wireless devices cannot speak to each other but can print.The kit: GL Net access point, Cisco layer 3 switch & a PFSense firewall.So, initially I intended to put the GL Net box into AP mode (instead of router) and use Cisco’s pri...
Hello, So we are trying to switch to new firewall hardware. Latest software. Same configs. No changes on our core. New firewall with test bed core switch works fine. So we try to go Live. Swapped cables, cleared arp. If I ping to internet from our c...
I have a network with 1 switch (cisco catalyst 3560), one router (cisco 2900) and for now 5 access points (cisco 1142N).how can I apply mac filtering in my network?
