Does C9500-48Y4C-A support both SFP and SFP+ RJ45 module? Have checked the https://tmgmatrix.cisco.com/?npid=50 Cisco Optics-to-Optics Interoperability Matrix for combability, it is on the list. But from Cisco commerce online configuration, there is ...
Forum Posts
Hello,We had a CBS350-48T-4X successfully stacked with a CBS350-24XS. The CBS350-24XS was the primary unit and the CBS350-48T-4X Unit ID After Reset was Set to "Auto". I then changed the CBS350-48T-4X Unit ID After Reset to "2" and hit apply and rebo...
I am a university student who is currently studying networking. I am having a bit of a problem with one of my projects, where my laptops just refused to connects with anything past the point of my wireless routers (WRT300N) and i have no clue on what...
Hi,I have been seeing large outages when we see a link flap in our core with RSTP. I have noticed under 1 of the links that spanning-tree port type edge trunk is enabled. Should this be used for a switch > switch link or will this cause issues? i tho...
Hello,My experience in configuring switches and routers is limited and I am stuck on 2 issues with my new Catalyst 1000 switch which I believe are related:ARP inspection errorsFailure to ping other hosts on the same switch in the same VLAN 10The ARP ...
Hi all, c3750 not completing bootingFile "flash:/c3750-ipservicesk9-mz.122-55.SE11.bin" uncompressed and installed, entry point: 0x1000000executing...Restricted Rights LegendUse, duplication, or disclosure by the Government issubject to restrictions ...
Hi,I would like to know what are the requirments to do high availablity for Nexus 3k?Are both devices needs to be same IOS version and same Model? Should the Fex number match on both devices? and is there something else should match on them? Thanks,
Resolved! VLAN related question
If trunk port can be created between two layer 2 switches, then why we need a layer 3 device to allow communication between different vlan users?
Resolved! Inter-Vlan routing with dedicated DHCP
Hi,Can someone assist me with my lab? I've been trying for over 4 hours and haven't found a solution for some reason. I have three vlans, numbered 10, 15, and 20. 10 and 20 are clients, while 15 is for the DHCP server. I even made sub-interfaces and ...
Have you considered any security implications of enabling IGMP Querier functionality on the SG200-50P switch?
Resolved! Cisco 9200 Stack remove
Hi team We have two Cisco Catalyst 9200 in Stack, in a period of approximately 4 months we had 3 episodes where one of the boxes leaves the Stack, getting REMOVED statusTo go back, a reboot is necessary in that box that was left out. The physical por...
my last few attempts ended in flagged in spam so maybe this timeI have several switches stating this almost immediately after power onBooting...Interface GE 0 link down***ERROR: PHY link is downThis is the first time working with networking switches ...
I'm doing a small school project for a small business with 5 departments and each department has 10 employees which makes a total of 50 employees. I used a 192.168.1.0 network address and a /27 as a subnet mask to subnet my network into 5 department ...
Resolved! Ping not working in a specific VLAN,
spent hours trying to figure out what s wrong, let's consider topology below WLC01(10.47.0.2) can ping WLC02 (10.47.0.3)nexus((10.47.0.6) can ping nexus(10.47.0.5) WLC01(10.47.0.2) CAN NOT ping 9k stack(10.47.0.1)nexus((10.47.0.6 / 5) CAN NOT ping 9k...
Hi, I'm teaching a class some basics of Cisco configuration and I'm in a bit of a pickle. According to our materials the configuration I'm using should be functional, but not even the skills team who created the **bleep** exercise can tell me what's ...
