Hello, I read a few posts concerning this topic but it's not clear from my end and was hoping to clear this up. I have several 2960X switches and I have two vlans a voice and data. When I look at the command "show mac address-table" I see entries s...
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Hi all, I experienced a network outage the other day which i don't fully understand and am hoping the community might be able to help me. Our infrastructure (which i have inherited) has a number of Hyper V servers connected via 2 Cisco Nexus 3048TP s...
Have configured 3 VLAN's.1) Desktop & Laptop2) IP Phone3) Server's DHCP is configured and ip is getting released to desktop & server's, However not getting IP's to VOIP phone. which is in seperate VLAN. Attached is n/w diagram. Please suggest
Resolved! %SW_MATM-4-MACFLAP_NOTIF: Host in vlan 105 is flapping between port Po2 and port Gi1/0/40 HSRP
Hello Team, I have Core A and Core B running in HSRP and both core are in Stack.Recording server is connected to port gig 1/0/40 (access vlan 105) on both Core switches, shows the below continuous flappingApr 5 13:52:37: %SW_MATM-4-MACFLAP_NOTIF: Hos...
Resolved! No ssh option in cat4500
Hi, Trying to enable SSH on Cisco 4500 switch but surprisingly I do not see SSH option anywhere. Below is the sh version output. Please assist. Switch(config)#line vty 0 4Switch(config-line)#traSwitch(config-line)#transport iSwitch(config-line)#tra...
One question I've often asked myself but haven't been able to find an answer to yet... When a switch enabled with STP boots up, all switch ports transition through a series of STP port states before finally reaching a forwarding state (for those that...
Hello,i find syntax for netflow for 9200 switches different.for some reason i am not seeing the flow in the PRTG.Secondly i am unable to apply monitoring from interfaces.for exampleip flow monitor monitor1 inputwould not work in when i applied to gi...
Hi all, I'm in Packet Tracer 7.3 - I have set up my VTP server and client configuration and it all works perfectly. I run the copy running config start-up config command. If I then Power Cycle Devices, everything comes back as it should. However, if ...
I have two catalyst 9200 line switches, one c9200-24P-E and one c9200-48P-E, is it possible to stack between them forming a single switch stack?
Dear All, After I read out a lot of Cisco pages regarding the new conditionals of certifications I have some questions which are still alive.Please help me if somebody can. 1. How can I recertify my CCNP Routing Switching (expiration date: Apr 2021)?...
Resolved! Redundancy/Resilient Design
I have a design question for distribution layer,if we choose to use catalyst 9600 for our distribution layerhttps://www.cisco.com/c/en/us/products/switches/catalyst-9600-series-switches/index.htmldo we still need to do a redundancy, by stacking two b...
Resolved! Cisco - History of upgrade file types ?
Hello all,I'm new to Cisco and I've been learning about the various platforms and the ways you can upgrade them (.tar, .pkg, and .bin files, install vs bundled mode, etc.). I'm currently trying to become more familiar with the various upgrade file ty...
I can ssh into a host from one port on my 3560 to another, but from my firewall down a channel group or from the host through the channel group to the firewall there is no communication at layer 3, but arp makes it.I have no settings set on the port ...
My Nexus 7000 seem to be encapsulating outgoing packets in FabricPath frames while the feature is not enabled. None of my VLANs are set up as "FP" and none of my other Nexus devices are using it either. Through a sniffer I set up (using a monitor ...
hi, there,we have many interfaces on our access layer switches, each of them are connected with two devices, a phone and a computer, how ever, we found each of the interfaces with many mac addresses, some of them even with hundreds. The devices are n...
