WS-C4900 Series Models Comparison
Table 1 compares the features of the Cisco Catalyst® 4948, 4948 10 Gigabit Ethernet, 4928 10 Gigabit Ethernet, and 4900M Switches.
Table 1. Cisco Catalyst 4900 Series Switches Model Comparison
|
Feature and Description |
Cisco Catalyst 4948 |
Cisco Catalyst 4948 10 Gigabit Ethernet |
Cisco Catalyst 4928 10 Gigabit Ethernet |
Cisco Catalyst 4900M |
|
Switching capacity |
96 Gbps |
136 Gbps |
96 Gbps |
320 Gbps |
|
Throughput |
72 million packets per second (mpps) |
102 mpps |
72 mpps |
250 mpps for IPv4 125 mpps for IPv6 |
|
Height |
One rack unit (1RU) |
1RU |
1RU |
2RU |
|
Modular half-card slots |
0 |
0 |
0 |
2 |
|
Maximum number of 10/100/1000 ports |
48 |
48 |
0 |
40 |
|
Maximum number of 10 Gigabit Ethernet (RJ-45) ports |
0 |
0 |
0 |
16 |
|
Maximum number of 10 Gigabit Ethernet (fiber) ports |
0 |
2 |
2 |
24 |
|
Maximum number of Gigabit Ethernet (fiber) ports |
4 |
0 |
28 |
32 (Cisco TwinGig Converter Module) |
|
Cisco® TwinGig Converter Module support |
No |
No |
No |
Yes (8 port half-card only) |
|
Uplink optic types |
4 Small Form-Factor Pluggable (SFP) optics |
2 X2 (10 Gigabit Ethernet) optics |
2 X2 (10 Gigabit Ethernet) optics |
8 X2 (10 Gigabit Ethernet) optics and 8 SFP+ (using OneX) |
|
Multilayer switching |
IP Base and Enterprise services options |
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 |
17.5 MB |
|
Routes |
32,000 |
32,000 |
32,000 |
200,000 IPv4 and 128,000 IPv6 |
|
CPU |
266 MHz |
666 MHz |
666 MHz |
1.3 GHz |
|
Synchronous dynamic RAM (SDRAM) |
256 MB |
256 MB |
256 MB |
512 MB |
|
Active VLANs |
2048 |
2048 |
2048 |
4196 |
|
Multicast entries |
28,000 (Layer 3) 16,000 (Layer 2) |
28,000 (Layer 3) 16,000 (Layer 2) |
28,000 (Layer 3) 16,000 (Layer 2) |
56,000 for IPv4 28,000 for IPv6 |
|
Per-VLAN Spanning Tree (PVST) and VLAN IDs |
4096 |
4096 |
4096 |
4096 |
|
Spanning Tree Protocol instances |
1500 |
1500 |
1500 |
3000 |
|
Switched virtual interfaces (SVIs) |
2000 |
2000 |
2000 |
4000 |
|
Security and quality-of-service (QoS) hardware entries |
32,000 |
32,000 |
32,000 |
128,000 |
|
MAC addresses |
32,000 |
55,000 |
55,000 |
55,000 |
|
Switched Port Analyzer (SPAN) |
2 ingress and 4 egress |
2 ingress and 4 egress |
2 ingress and 4 egress |
8 ingress and 8 egress |
|
USB port |
No |
No |
No |
Yes |
|
Compact flash memory support |
No |
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 |
Cisco IOS Software Release 12.2(46)SG or later |
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