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Cisco WS-C4948E Switch Overview
WS-C4948E belongs to the Cisco Catalyst 4900 Series Switches, it widely used in the campus local area network (LAN) access. The Cisco Catalyst 4948E Ethernet Switch is built from the start to deliver class-leading, full-featured server-access switching. The switch offers forty-eight 10/100/1000 Gbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports and is designed to simplify data center architecture and operations by offering service provider-grade hardware and software in a one Rack Unit (1RU) form factor optimized for full-featured Top-of-Rack (ToR) data center deployments.
Cisco WS-C4948E Switch Parameters
Device Type | Switch - 48 ports - Managed |
Enclosure Type | Rack-mountable 1U |
Subtype | Gigabit Ethernet |
Ports | 48 x 10/100/1000 + 4 x SFP+ |
Performance | Switching capacity : 176 Gbps ¦ IPv4 switching : 131 Mpps ¦ IPv6 switching : 110 Mpps |
Capacity | QoS hardware entries : 32000 ¦ Switched virtual interfaces (SVIs) : 4000 ¦ Active VLANs : 4096 ¦ Spanning Tree Protocol instances : 3000 |
MAC Address Table Size | 55K entries |
Jumbo Frame Support | 9216 bytes |
Routing Protocol | RIP-1, RIP-2, static IP routing |
Remote Management Protocol | SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTPS, TFTP, SSH, SSH-2, CLI |
Features | Hot swap module replacement, Layer 2 switching, DHCP support, auto-negotiation, VLAN support, IGMP snooping, MAC address filtering, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Spanning Tree Protocol (STP) support, Per-VLAN Spanning Tree (PVST), tunnelling, DHCP snooping, Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Access Control List (ACL) support, Quality of Service (QoS),Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Time Domain Reflectometry (TDR), Per-VLAN Spanning Tree Plus (PVST+) |
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, IEEE 802.3ah, IEEE 802.1ag |
Power Redundancy | Optional |
Dimensions (WxDxH) | 44.5 cm x 49.3 cm x 4.4 cm |
Weight | 6.4 kg |
Optical Transceivers for Cisco WS-C4948E Switch
Based on the SFP (optical module form factor) Gigabit Ethernet ports accommodate range SFP (optical module form factor) optical transceivers, including Cisco 1000BASE-T, 1000BASE-SX, 1000Base-LX/LH, 1000BASE-ZX, 1000BASE-BX-D, 1000BASE-BX-U. For more information on these Cisco optical transceivers, please check the following table.
MFG Part number | Description | Price |
GLC-T | Cisco GLC-T Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver | US$13.02 |
GLC-TE | Cisco GLC-TE Transceiver Module Compatible 1000M SFP Copper 100m | US$13.02 |
GLC-SX-MM | Cisco GLC-SX-MM Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver | US$6.00 |
GLC-LH-SM | Cisco GLC-LH-SM Compatible 1000Base-LX/LH SFP 1310nm 10km Transceiver | US$7.00 |
GLC-ZX-SM | Cisco GLC-ZX-SM Compatible 1000BASE-ZX SFP 1550nm 70km Transceiver | US$24.00 |
GLC-SX-MMD | Cisco GLC-SX-MMD Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver | US$6.00 |
GLC-LH-SMD | Cisco GLC-LH-SMD Compatible 1000Base-LX/LH SFP 1310nm 10km DOM Transceiver | US$7.00 |
GLC-BX-D | Cisco GLC-BX-D Compatible 1000BASE-BX-D SFP 1490nm-TX/1310nm-RX 10km DOM Transceiver | US$12.00 |
GLC-BX-U | Cisco GLC-BX-U Compatible 1000BASE-BX-U SFP 1310nm-TX/1490nm-RX 10km DOM Transceiver | US$9.00 |
CWDM SFP | 1.25G CWDM SFP 1270~1450nm 120km LC DDM Optical Transceiver | US$55.00 |
DWDM SFP | Cisco DWDM-SFP-3033 Transceiver Module Compatible 1.25G DWDM SFP DWDM:1528~1564nm 80km | US$186.00 |
GLC-BX40-D-I | Cisco GLC-BX40-D-I Transceiver Module Compatible 1.25G SFP BIDI 1550nm TX/1310nm RX 40km | US$22.32 |
GLC-BX40-DA-I | Cisco GLC-BX40-DA-I Transceiver Module Compatible 1000BASE-BX40 1.25G WDM SFP 1490nm TX/1310nm RX 40km | US$23.25 |
GLC-ZX-SMD | Cisco GLC-ZX-SMD Compatible 1000BASE-ZX SFP 1550nm 70km DOM Transceiver | US$24.00 |
GLC-BX80-D-I | Cisco GLC-100BX80-D-I Compatible 100BASE-BX BiDi SFP 1550nm-TX/1310nm-RX 80km DOM Transceiver | |
GLC-BX80-U-I | Cisco GLC-FE-BX80-U-I Compatible 100BASE-BX BiDi SFP 1490nm-TX/1550nm-RX 80km DOM Transceiver |
How to determine what types of optical transceivers for Cisco switches?
1. Finding the corresponding optical module compatibility matrix via Cisco official website.
2. On the running switches, enter the privileged mode and input # "show idprom interface gi1 / 0/48" command, you can query the optical module model and serial number, If not, try to input other two commands: xuxic or show idprom int g2/6
3. Checking the type and port based on the specification, it can be used as long as it is gigabit SFP optical module interface. But the specific models to be decided according to the actual demand, such as type, the actual use of distance, single-mode or multimode, single fiber or dual fiber etc. Welcome to consult Cozlink engineer.
Summary
The Cisco WS-C4948E offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently manage bandwidth-intensive multimedia and time-sensitive and mission-critical applications. The Cisco Catalyst 4948E can classify, monitor, and mark incoming packets, allowing the administrator to differentiate traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic. This high quality Cisco switch works with a number of Gigabit Ethernet SFP optical transceivers. You can easily find these high quality fiber optic transceivers at very competitive rates on Cozlink. What makes this even better that Cozlink also offer you a wide range of patch cords, fiber optic pigtails and high speed cables to choose from and Cozlink also ensure that you get the same day shipping.