Техническая Спецификация для Cisco Catalyst 4900 300-Watt DC power supply PWR-C49-300DC=
Модели
PWR-C49-300DC=
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Feature Comparison
Table 2 compares the features of the Cisco Catalyst 4948 Switch, Catalyst 4948 10 Gigabit
Ethernet Switch, and Catalyst 4900M Switch.
Table 2.
Cisco Catalyst 4900 Series Switches Model Comparison
Feature and Description
Cisco
®
Catalyst 4948
Cisco Catalyst 4948 10
Gigabit Ethernet
Gigabit Ethernet
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
Ethernet Ports
0
2
24
Maximum Gigabit Ethernet
(Fiber) Ports
(Fiber) Ports
4
0
32 (Cisco TwinGig Converter
Module)
Module)
Cisco TwinGig Converter
Module Support
Module Support
No
No
Yes (half-cards only)
Uplink Optic Type
4 Small Form-Factor
Pluggable (SFP) optics
Pluggable (SFP) optics
2 X2 (10 Gigabit Ethernet)
optics
optics
8 X2 (10 Gigabit Ethernet)
optics
optics
Multilayer Switching
IP Base and Enterprise
Services options
Services options
IP Base and Enterprise
Services options
Services options
IP Base and Enterprise
Services options
Services options
Shared Buffer
16 MB
16 MB
16 MB
CPU
266 MHz
666 MHz
1.3 GHz
Synchronous Dynamic RAM
(SDRAM)
(SDRAM)
256 MB
256 MB
512 MB
Active VLANs
4096
4096
4096
Multicast Entries
●
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
(PVST) and VLAN IDs
4096
4096
4096
Spanning Tree Protocol
Instances
Instances
1500
1500
3000
Switched Virtual Interfaces
(SVIs)
(SVIs)
2000
2000
4000
Security and QoS Hardware
Entries
Entries
32,000
32,000
128,000
MAC Addresses
32,000
55,000
55,000
Switched Port Analyzer
(SPAN)
(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
Support
No
No
Yes
System Reset Button
No
No
Yes
Minimum Software
Requirement
Requirement
Cisco IOS
®
Software Release
12.2(20)EWA or later
Cisco IOS Software Release
12.2(25)EWA or later
12.2(25)EWA or later
Cisco IOS Software Release
12.2(40)XO or later in both
Data sheets
12.2(40)XO or later in both
Data sheets