Hi.I have some problem making LACP work correctly.I want to connect 3850 (2 switches stack) with 2960X (3 switches stack) with 2 SFP-10G-ACTIVE-CABLE's.My configuration: 3850:* interface TenGigabitEthernet1/1/1description --TO-2960X--switchport mode ...
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Hello everyone!I have a problem with my packet tracer interface which isn't working fine these days. I don't know why?But I think I have made some changes and those changes caused me this issue.The issues are that when I open packet tracer every time...
We have deployed Cisco 2960 switch in environment & as general practice we used to do scanning of the network devices to check for any unwanted port open.When we did for Cisco 2960 switch, the switch was not listening to any of the TCP ports.Would li...
Resolved! BFD over vPC peer keepalive link
Shall we configure BFD over vPC peer keepalive link?
Hello all, I'm trying to find out if each individual port on C9300-NM-4G module is a routed port and can have sub-interface with dot1q (Vlan tag) enabled?I have been searching online but didn't find any document that answer the questions. I assume th...
Resolved! ASR1002 NETFLOW FUNCTION DOESN'T WORK
Hi All, I have configured the netflow v5 collection on one of my ASR1002 , but it never collect the flow . Could you guys give some suggestion ? Version : ASR1000 Software (PPC_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.4(3)S10 Con...
Hi there! I`m working with Cisco PT, and when I create a simple or complex PDU, message goes to Laptop and back from PC through Wireless Router, but then Router sends an extra message to Laptop agan. What does it mean an how can I fix it? Thank you ...
We're about to replace all of our access switches with new 9300s and I currently have 2 stacks of 4 in one office. I have the capacity to condense bot]h stacks into one and I'm curious as to what the design considerations are of the two topologies de...
I have 2 GS350 switches connecting 2 buildings and one of the switches tries to contact the other but gets this error: AAA-W-REJECT.One of them is connected to a 4g router/access point with dhcp enabled and there are only one lan - 192.168.168.0\24 n...
Hello Folks. Tried to do my research but cant seem to find the simple thing as I am looking for (which I hope aint that hard to accomplish)Im a true beginner of the cisco experience and cant say I know much yet, but I'm learning slow and steady! ;) J...
Hello Cisco Community, I have a stack with three switches 3850, I replaced a faulty stack cable and switches 2 and 3 restarted, everything is working with no problems. My question is, did I did something wrong? or is it normal that the switches resta...
Resolved! IGMP Querier traffic flow
I have a question about a very simple L2 network. Please look at the picture and explain the traffic flow. I understand that before the traffic can be sent to the receiving host, the traffic has to go the querier (SW1). How and when does SW2 forwa...
Hello, I recently inherited a C6880-X VSS Cluster in one of our buildings for doing maintenance and software upgrade. Nobody really wanted to do it because there are over 400 access ports attached ... But I think it is necessary for security reasons....
Hi - I am copying IOS file of 439MB from our Data center jump server to Remote site Switch using FTP but after an hour SSH session of the switch is getting closed automatically. I have also changed the line vty session timeout and exec-timeout to ne...
Resolved! Question regards Boot variable.
Hi All,I have doubt on configuring Boot variable for different devices like L2 switch,L3 device .I noted that in some switch it is simple boot system flash: <IOS.name> ,on another device it is configured as boot system bootflash:<IOS.name> .or Boot...
