CBS350-24XS ARP Table Size

[Thijs19901]

Hi,

I'm a bit confused about the following.

I want to stack two CBS350-24XS devices in native mode, as they are the same model. However, I'm trying to determine the maximum size of the ARP table, but I'm finding conflicting information. From what I can see, the maximum ARP table size for the CBS350-24XS is 8K, correct?

Feature CBS350 “10G uplink port SKUs” CBS350 “10G network port SKUs” Hybrid stack

MAC table size	16K	32K or 64K	16K
Number of Multicast groups	2K	4K	2K
Number of ACEs supported	1K- reserved	2K- reserved	1K- reserved
Total number of IP entries	992	7392	992
ARP table size	1K – reserved	8K – reserved	1K – reserved
Max number of IPv6 interfaces	106	200	106
Max MAC table aging	400 seconds	630 seconds	400 seconds
IPv6 Manual Tunnel/ 6tp4 tunnel/ ISATAP routing tunnel	Not supported	Supported	Not supported
Default number of VLAN Mapping entries	0	32	0

[Enes Simnica · Accepted solution]

Yes, you're correct. For the CBS350-24XS, which is one of the "10G network port SKUs," the maximum ARP table size is 8K, based on the data you've provided. This applies to devices with 10G network ports.and for hybrid stacking configurations or "10G uplink port SKUs," the ARP table size is smaller, at 1K. So, in your case, when stacking two CBS350-24XS devices, the ARP table size would be 8K in native mode, as they fall under the "10G network port SKUs" category.

-Enes

[Thijs19901]

Hi Enes,

Thank you for the reply and the clear answer.

One more question, the mac table size will that be 32K or 64K?

[Enes Simnica]

ur welcome!

For the CBS350-24XS (10G network port SKU), the MAC address table size is typically 32K, though some models may support up to 64K. To confirm for your specific device, check the Cisco documentation or the device interface. But I'm really sure that the correct MAC address table size is 32K. There's no option for 64K in this model.

-Enes

[Thijs19901]

Hi Enes,

Thanks for all the information.