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The Cisco Catalyst 4948 is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1 RU) fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 Series offers exceptional performance and reliability for low density, multilayer aggregation of high performance servers and workstations. The Cisco Catalyst 4948 offers 48 ports of wire-speed 10/100/1000BASE-T with 4 alternative wired ports that can accommodate optional 1000BASE-X Small Form-Factor Pluggable (SFP) optics. Exceptional reliability and serviceability are delivered with optional internal AC or DC 1 + 1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans. | Product Description | Cisco Catalyst 4948 - switch - 48 ports | | Device Type | Switch | | Form Factor | Rack-mountable - 1U | | Dimensions (WxDxH) | 17.3 in x 16.1 in x 1.7 in | | Weight | 16.5 lbs | | Processor | 1 266 MHz | | RAM | 256 MB SDRAM | | Flash Memory | 64 MB | | Ports Qty | 48 x Ethernet 10Base-T, Ethernet 100Base-TX, Ethernet 1000Base-T | | Data Transfer Rate | 1 Gbps | | Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet | | Empty Slots | 4 x SFP (mini-GBIC) | | Remote Management Protocol | SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP | | Features | Layer 2 switching, DHCP support, auto-negotiation, ARP support, trunking, Cisco Fast EtherChannel, VLAN support, Cisco Gigabit EtherChannel , IGMP snooping, Syslog support, manageable, MAC address filtering | | Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s |
| General | | Device Type | Switch | | Enclosure Type | Rack-mountable - 1U | | Width | 17.3 in | | Depth | 16.1 in | | Height | 1.7 in | | Weight | 16.5 lbs | | Processor | | Processor | 1 : 266 MHz | | Memory | | RAM | 256 MB SDRAM | | Flash Memory | 64 MB flash | | Networking | | Ports Qty | 48 x Ethernet 10Base-T, Ethernet 100Base-TX, Ethernet 1000Base-T | | Data Transfer Rate | 1 Gbps | | Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet | | Remote Management Protocol | SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP | | Connectivity Technology | Wired | | Switching Protocol | Ethernet | | MAC Address Table Size | 32K entries | | Status Indicators | Link activity, power, system, status | | Features | Layer 2 switching, DHCP support, auto-negotiation, ARP support, trunking, Cisco Fast EtherChannel, VLAN support, Cisco Gigabit EtherChannel , IGMP snooping, Syslog support, manageable, MAC address filtering | | Compliant Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s |
| Expansion / Connectivity | | Expansion Slots Total (Free) | 4 ( 4 ) x SFP (mini-GBIC) | | Interfaces | 48 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45
1 x management - RJ-45
1 x management - Ethernet 10Base-T/100Base-TX - RJ-45 | | Miscellaneous | | Authentication Method | Secure Shell (SSH), RADIUS, TACACS+, Secure Shell v.2 (SSH2) | | Compliant Standards | NEBS level 3, CE, ETSI, CISPR 22 Class A, EN 60950, EN 61000-3-2, IEC 825-1/EN 60825-1 class 1, VCCI Class A ITE, IEC 60950, EN 61000-3-3, EN55024, EN55022 Class A, UL 60950, EN50082-1, CSA 22.2 No. 60950, AS/NZS 60950-1, FCC Part 15, ICES-003 Class A, AS/NZS 3548 | | Power | | Power Device | Power supply - hot-plug / redundant - plug-in module | | Installed Qty | 0 (installed) / 2 (max) |
| Environmental Parameters | | Min Operating Temperature | 32 °F | | Max Operating Temperature | 104 °F | | Humidity Range Operating | 10 - 90% |
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