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Forum Posts
I have a problem with enabling ip routing on the layer 3 switch Catalyst4948. As a result of that my Vlan interfaces cannot communicate. I also cannot ping other interface ip addesses, if device is connected on one vlan it can only ping devices on vl...
Resolved! Adding Vlan in a network
Hi we have network with no vlan setup. I have attached a simple pic. Every thing is running on default vlan. Now we have a requirement for vlan to separate a network. I will have to create sub interfaces on lan port of router. My Question is:Can i a...
Resolved! VSS Dual Active Detection Methods
Hi, About 6 years ago we suffered a major DC failure on our VSS switches where they went into a split-brain situation. We were running IOS 12.33 at the time and advised by Cisco to use both PAGP – AND - Fast-Hello for Dual-Active-Detection. We a...
So I have a monitor session that is source vlans 50-150 153-199 destination interface g0/1Then I have a gigamon connected to that interface. On the other side of the gigamon I am sending traffic out and connecting back to Port g0/13 with another moni...
Just letting anyone looking to purchase the IE-1000's (any variant) about the product and its platform. We have about 80 IE-1000's so far and this is our impressions. 1) The IE-1000's DO NOT support AAA/TACACS+ (As of code 1.6). Oddly, the configur...
Hello,I needed to enable Layer 2 flooding on one little subnet/vlan and I have enabled it on Virtual Network of Host Onboarding section same as https://community.cisco.com/t5/networking-documents/cisco-sd-access-layer2-flooding/ta-p/3943916. However,...
I try to bind Cisco Packet Tracer with Visual Studio .NET: - Write Some Codes in C# (within Visual Studio).- Build IoT System in Packet Tracer.My problem that I cannot find any way to connect between this two programs, any ideas!???
Resolved! 3850 failed upgrade how to recover?
I am getting this loop after attempting a package update to the recommended release for our 3850 48T-S How do I proceed when it never gets to a prompt? Getting rest of imageReading full image into memory...Check base package header ...: done = 16384G...
Hi everyone, I ran into a problem I never saw before this morning while installing 2 new Catalyst C9200L-24P-4G (Network Essentials and DNA Essentials).When I tried to connect int. G1/0/24 (switch 1) to int. G1/0/24 (switch 2), they didn't even try t...
Hey Crew. I ran into an issue with a old switch. I have a pair hooked together 1 28 WS-C3750G-24TS 12.2(55)SE6 C3750-IPSERVICESK9-M* 2 28 WS-C3750G-24TS 12.2(55)SE6 C3750-IPSERVICESK9-M I have two firewalls with management port connected to port 10...
Working with two SG350 switches and one third switch - a Catalyst 3560. When I connect two trunk ports between the two SG350 switches with RSTP enabled things work fine.First switch is the root bridge. When I disconnect the main trunk, on the second ...
Hello, Would someone be so kind and help me understand the definition of these load balancing options for Etherchannel?Use cases or examples will extremely help.dst-ipdst-macsrc-dst-ipsrc-dst-macsrc-ipsrc-mac What would be best in testing an Ethercha...
Hi,Any clue why all configuration under the interfaces e.g portchannel etc.. lost after i truned both the switches ON ( active switch switchover ) after some days. I turned them off before going to vacations (they are not in production yet ). Have do...
We have following config on one of corporate switch.Is it Ok to configure access and trunk on same switch port?Below is the config.interface GigabitEthernet0/3 switchport access vlan 166 switchport trunk encapsulation dot1q switchport trunk allowed v...
Hi - I am trying to add C9300-NM-8X expansion module to my 9300 and it's not recognized by the switch. And when I remove the module, I'm getting this message in syslog:%PLATFORM_PM-6-FRULINK_UNKNOWN_REMOVED: Unsupported FRU module removed from slot 1...
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