3Com 3CRS48G-48P-91 Data Sheet - Page 5
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5 3COM SWITCH 4800G GIGABIT FAMILY SPECIFICATIONS CONNECTIVITY Switch 4800G 24-Port 24 10/100/1000 Mbps with 4 SFP combo interfaces Switch 4800G PWR 24-Port 24 10/100/1000 Mbps with 4 SFP combo interfaces 10/100/1000 ports with 15.4W per port maximum; 370W total PoE power budget without supplemental RPS power Switch 4800G 48-Port 48 10/100/1000 Mbps with 4 SFP combo interfaces Switch 4800G PWR 48-Port 48 10/100/1000 Mbps with 4 SFP combo interfaces 10/100/1000 ports with 15.4W per port maximum; 370W total PoE power budget without supplemental RPS power Switch 4800G 24-Port SFP 24 100/1000 Mbps SFP with 8 10/100/1000 Mbps combo interfaces All models 2 expansion slots each supporting up to 2 10-Gigabit interfaces 10BASE-t/100BASE-tX/1000BASE-t ports configured as auto-MDi/MDiX PERFORMANCE 24-port models 144 Gbps full duplex switching capacity 107.2 Mpps forwarding rate 48-port models 192 Gbps full duplex switching capacity 142.9 Mpps forwarding rate Stacking Performance With CX4 local connection, each port operates at 12 Gbps, or 24 Gbps full duplex. total bandwidth is 48 Gbps using two ports per switch, or 96 Gbps using four ports per switch. All models Wirespeed performance across ports Store-and-forward switching Latency
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CONNECTIVITY
Switch 4800G 24-Port
24 10/100/1000 Mbps witH 4 SFP combo interfaces
Switch 4800G PWR 24-Port
24 10/100/1000 Mbps witH 4 SFP combo interfaces
10/100/1000 ports witH 15.4W per port maximum; 370W total PoE power
budget witHout supplemental RPS power
Switch 4800G 48-Port
48 10/100/1000 Mbps witH 4 SFP combo interfaces
Switch 4800G PWR 48-Port
48 10/100/1000 Mbps witH 4 SFP combo interfaces
10/100/1000 ports witH 15.4W per port maximum; 370W total PoE power
budget witHout supplemental RPS power
Switch 4800G 24-Port SFP
24 100/1000 Mbps SFP witH 8 10/100/1000 Mbps combo interfaces
All models
2 expansion slots eacH supporting up to 2 10-Gigabit interfaces
10BASE-T/100BASE-TX/1000BASE-T ports configured as auto-MDI/MDIX
PERFORMANCE
24-port models
144 Gbps full duplex switcHing capacity
107.2 Mpps forwarding rate
48-port models
192 Gbps full duplex switcHing capacity
142.9 Mpps forwarding rate
Stacking Performance
WitH CX4 local connection, eacH port operates at 12 Gbps, or 24 Gbps full
duplex. Total bandwidtH is 48 Gbps using two ports per switcH, or 96 Gbps
using four ports per switcH.
All models
Wirespeed performance across ports
Store-and-forward switcHing
Latency <10 µ
LAYER 2 SWITCHING
32K MAC addresses in address table
1K static configurable unicast MAC addresses (in addition to default addresses)
Jumbo frame support
4,094 port-based IEEE 802.1Q VLANs
GARP VLAN Registration Protocol (GVRP)
IEEE 802.1 Q-in-Q double-tagged VLANs
IEEE 802.1v protocol-based VLANs
MAC-based VLANs using RADA auto-VLAN assignment
VLAN mapping (1:1, n:1, 2:2)
IEEE 802.1ag Service Layer Operations, Administration and Maintenance
(OAM)
IEEE 802.3ad Link Aggregation Control Protocol (LACP); manual
and static modes
Link aggregation:
• 24-port models: 14 groups; 48-port models: 26 groups
• 128 total link aggregation groups per XRN/IRF stack
• 8 10/100/1000 ports or 4 10-Gigabit ports per group
Link aggregation load sHaring
Auto-negotiation and manual configuration of port speed and duplex
IEEE 802.3x full-duplex flow control and back pressure
half-duplex back pressure flow control
Unidirectional Link Detection (UDLD)
Broadcast, Multicast and Unicast traffic suppression
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP), 32 instances
Bridge Protocol Data Unit (BPDU) protection
Spanning Tree root guard
Internet Group Management Protocol (IGMP) v1, 2 and 3 snooping
Filtering for 1,024 L2/L3 multicast groups
IGMP querier
IGMP proxy
Dynamic host Configuration Protocol Relay (DhCP) Option 82
Unicast Reverse PatH Forwarding (uRPF)
BFD for Route Protocol, VRRP
SmartLink
Virtual Routing and Forwarding (VRF)/MCE
LAYER 3 ROUTING
hardware based IPv4 and IPv6 routing
1,024 static routes, in addition to default address
12K routing table entries
Address Resolution Protocol (ARP) entries: 8K dynamic, 1K static
1,024 virtual IP interfaces
Routing Information Protocol (RIP) v1 and v2: 2K routes
Open SHortest PatH First (OSPF) v1 and v2: 12K routes
Protocol Independent Multicast-Dense Mode (PIM-DM)
PIM-Sparse Mode (PIM-SM)
PIM v4, v6
IGMP v1, v2, v3
IGMP proxy
Border Gateway Protocol (BGPv4); 12K routes
Multiprotocol BGP (MBGP)
Equal Cost MultipatH Protocol (ECMP); up to 3 ECMP instances
Multicast Source Discovery Protocol (MSDP)
Multicast Listener Discovery (MLD) v1 and 2, and MLD snooping v1, 2 and 3
Dynamic host Configuration Protocol Relay (DhCP Relay)
Virtual Router Redundancy Protocol (VRRP)
Rapid Ring Protection Protocol (RRPP)
Bidirectional Forwarding Detection (BFD)
Policy-based routing
Routing Information Protocol next generation (RIPng) for IPv6; 2K routes
OSPF version 3 for IPv6; 6K routes
Border Gateway Protocol 4 (BGP4) for IPv6; 6K routes
MSDP for IPv6
Manual configuration of IPv6 over IPv4 tunnels
Compatible witH 6to4 tunneling and Intra-Site Automatic Tunnel
Addressing Protocol (ISATAP)
CONVERGENCE
8 Hardware output queues at eacH port
IEEE 802.1p Class of Service/Quality of Service (CoS/QoS) on ingress and
egress
Remarking of packet priority based on:
• Type of Service (ToS)
• IEEE 802.1p CoS
• IP precedence
• PHysical port
• Source/destination MAC address (IPv4/IPv6)
• VLAN information
• EtHertype
• Source/destination IP address
• Source/destination TCP port
• Source/destination UDP port
Packet/traffic redirection
Inbound and outbound ACL policies
VLAN-based ACL policies
Time-based Access Control Lists (ACLs)
Auto-voice VLAN for automatic vendor-independent segregation and prior-
itization of VoIP traffic
Multiple voice VLANs
Auto-QoS based on RADIUS settings
WeigHted Round Robin (WRR) Queuing
WeigHted Random Early Detection (WRED)
WeigHted Fair Queuing (WFQ)
Strict Priority (SP) Queuing
Mixed mode WWR + SP Queuing
DiffServ Code Point (DSCP) priority/expedited remarking of packets
SPECIFICATIONS
5
3COM SWITCH 4800G GIGABIT FAMILY