|
Feature
|
Cisco Catalyst 4948
|
Cisco Catalyst 4948 10 Gigabit Ethernet
|
Cisco Catalyst 4928 10 Gigabit Ethernet
|
Cisco Catalyst 4948E
|
Cisco Catalyst 4900M
|
|
Switching capacity
|
96 Gbps
|
136 Gbps
|
96 Gbps
|
176 Gbps
|
320 Gbps
|
|
Throughput
|
72 million packets per second (mpps)
|
102 mpps
|
72 mpps
|
131 mpps for IP Version 4 (IPv4)
110 mpps for IPv6
|
250 mpps for IPv4
125 mpps for IPv6
|
|
Height
|
One rack unit (1RU)
|
1RU
|
1RU
|
1RU
|
2RU
|
|
Modular half-card slots
|
0
|
0
|
0
|
0
|
2
|
|
Maximum number of 10/100/1000-Gbps ports
|
48
|
48
|
0
|
48
|
40
|
|
Maximum number of 10 Gigabit Ethernet (RJ-45) ports
|
0
|
0
|
0
|
0
|
16
|
|
Maximum number of 10 Gigabit Ethernet (fiber) ports
|
0
|
2
|
2
|
4
|
24
|
|
Maximum number of Gigabit Ethernet (fiber) ports
|
4
|
0
|
28
|
4
|
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
|
4 SFP or SFP+ (Gigabit Ethernet or 10 Gigabit Ethernet)
|
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
|
IP Base and Enterprise services options
|
|
Shared buffer
|
16 MB
|
16 MB
|
16 MB
|
17.5 MB
|
17.5 MB
|
|
Routes
|
32,000
|
32,000
|
32,000
|
64,000 IPv4 and 32,000 IPv6
|
200,000 IPv4 and 128,000 IPv6
|
|
CPU
|
266 MHz
|
666 MHz
|
666 MHz
|
1.0 GHz
|
1.3 GHz
|
|
Synchronous dynamic RAM (SDRAM)
|
256 MB
|
256 MB
|
256 MB
|
1024MB
|
512 MB
|
|
Active VLANs
|
2048
|
2048
|
2048
|
4096
|
4096
|
|
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)
|
32,000 (for IPv4)
16,000 (for IPv6)
|
56,000 (for IPv4)
28,000 (for IPv6)
|
|
Per-VLAN Spanning Tree (PVST) and VLAN IDs
|
4096
|
4096
|
4096
|
4096
|
4096
|
|
Spanning Tree Protocol instances
|
10,000
|
10,000
|
10,000
|
10,000
|
10,000
|
|
Switched virtual interfaces (SVIs)
|
2000
|
2000
|
2000
|
4000
|
4000
|
|
Security and quality-of-service (QoS) hardware entries
|
32,000
|
32,000
|
32,000
|
32,000
|
128,000
|
|
MAC addresses
|
32,000
|
55,000
|
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
|
8 ingress and 8 egress
|
|
USB port
|
No
|
No
|
No
|
No
|
Yes
|
|
Compact flash memory support
|
No
|
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(54)XO or later
|
Cisco IOS Software Release 12.2(46)SG or later
|
