McDewey

Data sheet Cisco public © 2025 Cisco and/or its affiliates. All rights reserved. Description Catalyst 9300X modular uplink models Catalyst 9300 modular uplink models Catalyst 9300 higher-scale models Catalyst 9300L/LM fixed uplink models Packet buffer per SKU 16-MB buffer for 48-port 5G Multigigabit, 24-port 10G Multigigabit and 12-port fiber 32-MB buffer for 48-port 10G Multigigabit and 24-port fiber 16-MB buffer for 24- or 48-port Gigabit Ethernet models 32-MB buffer for 24- and 48-port Multigigabit 32-MB buffer for 24-and 48-port Gigabit Ethernet models 64-MB buffer for 24-port Multigigabit model (24UXB) 16-MB buffer for 24- and 48-port Gigabit Ethernet models FNF entries 64,000 flows on 48-port 5G Multigigabit and 24-port 10G Multigigabit and 12-port fiber 128,000 flows on 48-port 10G Multigigabit and 24-port fiber 64,000 flows on 24-and 48-port Gigabit Ethernet models 128,000 flows on 24-port Multigigabit 128,000 flows on 24-and 48-port Gigabit Ethernet models 256,000 flows on 24-port Multigigabit 64,000 flows on 24-and 48-port Gigabit Ethernet models DRAM 16 GB 8 GB 8 GB 8 GB Flash 16 GB 16 GB 16 GB 16 GB VLAN IDs 4094 4094 4094 4094 PVST Instances 300 300 300 300 STP virtual ports (port* VLANs) for PVST 13,000 13,000 13,000 13,000 STP virtual ports (port* VLANs) for MST 13,000 13,000 13,000 13,000 Total switched virtual interfaces (SVIs) 1000 1000 1000 1000 Jumbo frames 9198 bytes 9198 bytes 9198 bytes 9198 bytes Total routed ports per Catalyst 9300 Series stack 448 448 448 416