3Com 7700R Datasheet - page 4
3 C O M
®
S W I T C H 7 7 0 0 FA M I LY D ATA S H E E T
4
PERFORMANCE
Backplane capacity
8- and 7-slot chassis: 96 Gbps; 4-slot: 48 Gbps
Maximum bandwidth
8- and 7-slot chassis: 240 Gbps; 4-slot: 120 Gbps
Maximum throughput
8- and 7-slot chassis: 177 Mpps; 4-slot: 95 Mpps
LAYER 2 SWITCHING
MAC Address
32K MAC addresses
10K Static MAC addresses
Modules forwarding (delay <10µs)
9K Jumbo Frame support
VLAN
4096 VLANs (IEEE 802.1Q)
Port-based (IEEE 802.1Q) and protocol-based (IEEE 802.1v) VLANS
GVRP (GARP VLAN Registration Protocol)
IPv6 tunneling using protocol-based VLANs
Link Aggregation
IEEE 802.3ad Link Aggregation Control Protocol (LACP)
Supports maximum of 64 link aggregation groups
Auto-negotiation
Auto-negotiation of port speed and duplex
Traffic control
IEEE 802.3x full-duplex flow control
Back pressure flow control for half-duplex
Supports broadcast storm suppression per VLAN
STP/RSTP
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1S Multiple Spanning Tree Protocol instances (MSTP)
Single STP instance
BPDU (Bridge Protocol Data Unit) protection
LAYER 3 SWITCHING
Routes
Hardware based routing
64K routes
64K static routes
64K dynamic / static ARP (Address Resolution Protocol) entries
IP Routing
64 IP interfaces
RIP (Routing Information Protocol), v1 and v2; supports Split Horizons
OSPF (Open Shortest Path First), v1 and v2; 50 areas
BGP4 (Boarder Gateway Protocol)*
IS-IS (Intra-Domain Intermediate System to Intermediate System)*
Multicast
Hardware-based multicast routing for wirespeed performance
1K multicast routes
IGMP (Internet Group Management Protocol) snooping on Layer 2 interfaces
IGMP v1 and v2
GMRP (GARP Multicast Registration Protocol)
PIM-DM (Protocol Independent Multicast-Dense Mode)
PIM-SM (Protocol Independent Multicast-Sparse Mode)
Network protocol
DHCP Relay (Dynamic Host Configuration Protocol Relay)
TCP/IP protocol stack
ARP
Resilience
VRRP (Virtual Router Redundancy Protocol): 14 virtual routers per
switch; each virtual router supports 16 IP addresses
Features
*
Available in the 3Com Advanced Feature Software