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Hello Fellow Network Engineers! This is probably an easy question, but I have not worked with Nexus switches all that much, so a little unfamiliar with some of the configuration.  I am trying the run the " fips mode enable" command in global configur...

jmh0211 by Level 1
  • 3155 Views
  • 8 replies
  • 0 Helpful votes

Hello folks, I am looking to purchase the following switch as Layer 3 C9300X-24Y-A and following switch as Layer 2 C9200L-48P-4X-E. The current old switches 3850 & 3650 that are being replaced have the following SFP for the most part "SFP-10GBase-SR"...

caleb1 by Level 1
  • 1441 Views
  • 11 replies
  • 0 Helpful votes

I'm implementing a controller for Openflow switches.   We install some default flows upon switch connection - such as  "Table 0 GOTO Table 1",  "Table 1 GOTO Table 2",  and so on.   We also install a few flows like "Send ARP packets to the controller...

joecoates by Level 1
  • 1296 Views
  • 3 replies
  • 0 Helpful votes

 unable to upgrade 2960 x switch to c2960x-universalk9-tar.152-7.E6.tar.getting below error Could not buffer tarfile...using multiple downloadsexamining image...%Error opening tftp://10.10.4.113/c2960x-universalk9-tar.152-7.E6.tar (No such f ile or d...

syed123 by Level 1
  • 770 Views
  • 1 replies
  • 0 Helpful votes

Hello i have a problem with my topology.When i try to ping to another vlan or the def-gateway i get timed out by arp, but it works on the same vlan.I created the trunks, acces, default gateways and configured the routers.The message wont even leave m...

I have 2 4500x switches operate in VSS.  The current config-register value is 0x2101 and I want to change it to 0x2102.  I changed it on the primary, did a  write mem and the primary chassis says it will be 0x2012 at the next reboot.  However, the co...

apache_le by Level 1
  • 2064 Views
  • 6 replies
  • 0 Helpful votes

Transitioning from NetSim Lite, and I'm stuck trying to create my first network. PC's cannot Ping to any device on the network. I've tried setting up IP addresses and DHCP, but PCs tell me DHCP requests fail. The switches have MAC addresses but simul...

kevkalu by Level 1
  • 1052 Views
  • 5 replies
  • 0 Helpful votes

As shown below I have a network with two L3 switches CoreSW C6500 and S2 C3650, they form OSPFv3 adjacency over vlan 724. The following networks 192.168.60.0/24 and 172.24.0.0/24 are all part of area 0, on S2 172.24.x.0/24 are all part of area 24 exc...

SSH problem.png

Hi! I'm setting ip an OSPF network using 4 different areas. Currently, the devices communicate with any other device from the same area with no issue. However, when I ping devices from different areas I receive the error: "Destination host unnreachab...

Noqqio by Level 1
  • 1539 Views
  • 3 replies
  • 0 Helpful votes

Hello, I can authenticate into my 3560 switch but when I attempt to use my TACACS r/w account then I am receiving these errors below.  EDIT: I can make changes with my external r/o and r/w accounts.  All of my other switches are working without issue...

davinci by Level 1
  • 19490 Views
  • 22 replies
  • 5 Helpful votes

Hi,     The following problem involves a firewall (10.249.0.13) wanting to close a BGP connection with its neighboring switch (10.249.0.14).   The switch answers with a BGP NOTIFICATION message that contains "No supported AFI/SAFI". (separate issue) ...

FNL by Level 1
  • 939 Views
  • 4 replies
  • 0 Helpful votes