Feature and Description |
Cisco Catalyst 4948 |
Cisco Catalyst 4948 -10GE |
Cisco Catalyst 4900M |
Switching Capacity |
96 Gbps |
136 Gbps |
320 Gbps |
Throughput |
72 mpps |
102 mpps |
250 mpps for IPv4
125 mpps for IPv6 |
IPv6 support |
In Software |
In Software |
In Hardware |
Height |
1RU |
1RU |
2RU |
Modular half-card slots |
0 |
0 |
2 |
Maximum 10/100/1000 ports |
48 |
48 |
40 |
Maximum 10 Gigabit Ethernet Ports |
0 |
2 |
24 |
Maximum Gigabit Ethernet (fiber) ports |
4 |
0 |
32 (Cisco TwinGig Converter Module) |
Cisco TwinGig Converter Module support |
No |
No |
Yes (half-cards only) |
Uplink optic types |
4 SFP optics |
Two X2 (10 Gigabit Ethernet) optics |
Eight X2 (10 Gigabit Ethernet) optics |
Multilayer switching |
IP Base and Enterprise Services options |
IP Base and Enterprise Services options |
IP Base and Enterprise Services options |
Shared buffer |
16 MB |
16 MB |
16 MB |
CPU |
266 MHz |
666 MHz |
1.3 GHz |
Synchronous Dynamic RAM (SDRAM) |
256 MB |
256 MB |
512 MB |
Active VLANs |
4096 |
4096 |
4096 |
Multicast Entries |
28K (Layer 3)
16K (Layer 2) |
28K (Layer 3)
16K (Layer 2) |
70K for IPv4
35K for IPv6 |
Per VLAN Spanning Tree (PVST) Protocol and VLAN IDs |
4096 |
4096 |
4096 |
Spanning Tree Protocol instances |
1500 |
1500 |
3000 |
Switched virtual interfaces (SVIs) |
2000 |
2000 |
4096 |
Security and quality-of-service (QoS) hardware entries |
32K |
32K |
128K |
MAC addresses |
32K |
55K |
55K |
Switched Port Analyzer (SPAN) |
2 ingress and 4 egress |
2 ingress and 4 egress |
8 ingress and 8 egress |
USB port |
No |
No |
Yes |
Compact flash memory support |
No |
No |
Yes |
System reset button |
No |
No |
Yes |
Minimum software requirement |
Cisco IOS® Software Release 12.2(20)EWA or later |
Cisco IOS Software Release 12.2(25)EWA or later |
Cisco IOS Software Release 12.2(46)SG or later |