10-02-2008 02:02 PM - edited 03-06-2019 01:44 AM
I would like to know why the 4510r-e installed on a customer only show few mac-ip. The switch has more than 300 ports installed.
I want do a show mac address-table and show arp to match the macs and know which ip is connected on each port.
Thanks
10-02-2008 02:05 PM
Is the 4510 acting as a layer 3 or layer 2 device.
If layer 2 then you would expect to see a large mac-address table with 300 active ports but a small arp table. The majority of arp entries will be on the layer 3 devices responsible for routing the L2 vlans on the 4500.
If layer 3 then you would expect to see both a large mac-address and large arp table.
Jon
10-02-2008 02:09 PM
How I know it the 4510 actig?.
I have several SVI with ip routing enabled.
10-02-2008 02:12 PM
Sounds like the 4500 is acting as a Layer 3 device then.
Are the 300 devices
i) active - because if they are not then their entries will time out of the arp and mac-address tables.
ii) within the vlans that you have SVI's for on the 4500.
Jon
10-02-2008 02:17 PM
Acording with your firs answer , i believe the problem is that in this moment all PCs and other devices are using another device (a router) as default gateway.
I had to swap the ip address of the router and the svi in that vlan.
Despite I have several vlan created all servers, pcs, printers, etc.... are the same vlan,Im working on that becasue I has to reconfig several devices, routes, firewalls, etc before move pcs to others vlans.
Thanks.
10-02-2008 02:21 PM
"i believe the problem is that in this moment all PCs and other devices are using another device (a router) as default gateway."
that would indeed explain a small arp table on the 4500.
Good luck with the move.
Jon
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