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
Experts, I have Cisco 3750 and have vlan 111 created with name WAN_VLAN, assigned ports gi0/1 - 5 and that works well. In that way, I have separated these ports from others and I can use them for WAN purpose. Here is the other part. I need to be ...
Hello dears, I would like know if the Catalyst 9K switch series (9300/9400/9500) supports the OpenFlow protocol. This switches can be managed from to a central controller? I looking for that and found the Cisco DNA Center. But what is the protoco...
Hi Is it possible to use multiple vty access list to control access to the router on different vty instances ? Example use standard access list 1 to restrict vty 0 4 and use access list 2 to restrict vty 5-6 We have this setup on multiple different ...
Hi All, Is Cisco LR (as opposed to SR) fibre SFP's recommended for virtual stacking switches together? Do I need to use single mode fibre or will multi work. Cheers, Jay
Dear all,I have a weird issue, I created a mac access-list with the list of all permitted mac addresses.It is working on all except one machine, once the access list is configured on interface, the connection drops.It is one of the ESXi servers.Note:...
Hi,I'm looking for many days some informations about the compatibilty over spanning-tree etherchannel guard misconfig and the new I.O.S 15.0.2 SE.This command : spanning-tree etherchannel guard misconfig, was enable before upgrade IOS in running-conf...
What is the best way to prevent any personal devices from accessing wired network from access switches Is configuring MAC-Based Access Control List by permitting only authorized mac addresses on cisco 3850 a good solution? Or any other. Ple...
We have connetced two 3850 in trunk with theree 2960 in ring network topology. And big question is. If is done on one switch configuration of NTP server. Can other switches take this adress from that one switch? And what is the best configuration o...
I want to filter OSPF routes within the same area. Distribution-list command is not available on Nexus 9k. Does anyone know an alternate option? Is it correct that Distributionlist command within OSPF is not available for Nexus 9k? Thanks
After configuring SPAN, Wireshark was able to read ICMP packets (ping traffic) on the destination port that was sent across the configured source port, using an older PC. However, another newer PC was unable to read the traffic, despite identical co...
Hello Community I am trying to implement what should be an easy configuration, but I am facing some problems. I just need to mark some packets from the hosts connected to my system. I have some C2960XR running 15.2(4)E6. working as layer 3 devices. I...
I have an RSP-440 PSEQ-CBC detected power sequencer failure. What to do in that case.
Resolved! vss and nexus
Hello all, I wanted to migrate from cisco catalyst 6506 to cisco 4510 r+e and bring v.s.s up in a campus. so I have few questions regarding port channel config. we have nexus 5k as downstream devices and is it good way to have all the downlinks t...
I have a WS-C3850-48P switch that I am trying to upgrade. I have copied the new IOS over, but the 'software' command is not found. From sh ver: Switch Ports Model SW Version SW Image Mode ------ ----- ----- ---------- ---------- ---- * 1 56 WS-C38...
I have two Catalyst 2960 switches that are part of an inherited network and I am trying to get them connected to Cisco Network Assistant so I can easily backup the config before changing some settings on one of the ports. Both switches are model WS-...
