Extreme Networks Summit1 - Manual (Page 29)

S UMMIT S WITCH I NSTALLATION AND U SER G UIDE 1-9
N ETWORK C ONFIGURATION E XAMPLE
In the gigabit core of the network, the Summit1 and Summit2 act as aggregators of
Gigabit Ethernet links from the edge and data center switches, as well as Ethernet and
Fast Ethernet links from legacy routers and hubs. In the core of the network, the
Summit1 and Summit2 can scale in port density and performance by connecting to a
Summit Virtual Chassis to support up to 32 non-blocking Gigabit Ethernet ports at 48
million packets per second (pps), or 128 non-blocking 10/100BASE-TX ports at 19
million pps.
In the data center or server farm, the Summit4 offers the right mix of ports and features
for servers. Data centers and server farms require integrated wire-speed routing to
eliminate the performance penalty associated with legacy routers when servers had to
be separated into different subnets. In addition, the Summit4 supports trunking of
either Ethernet, Fast Ethernet, or Gigabit Ethernet ports to match the performance of the
LAN connection to the performance of the server. The goal is to only buy the amount of
bandwidth that is needed and can be used. This is ideal for servers that can drive 400
Mbps on trunk Fast Ethernet ports, but would not be capable of more than 400 Mbps
performance on a Gigabit Ethernet port. The port density and performance of the
Summit4 can be scaled with the Summit Virtual Chassis to 16 Gigabit Ethernet ports,
and 128 10/100BASE-TX ports at 43 million pps.
At the edge of the network, higher-performance desktops need dedicated throughput,
while other devices can use small, shared segments. For higher-performance
connections, use the Summit3 and Summit48 switches (which offer 24 10/100BASE-TX
ports) and a single Gigabit Ethernet port, or 48 10/100BASE-TX ports and two Gigabit
Ethernet ports, respectively. For shared desktop segments, the Summit2 offers 16
10/100BASE-TX ports and two Gigabit Ethernet ports. Combining the Summit3 and the
Summit48 with the Summit Virtual Chassis, desktop switching port densities can scale
to 192 10/100BASE-TX ports at 28 million pps, and 384 10/100BASE-TX ports at 28
million pps, respectively.
Summit.bk : 1OVRVW.FM Page 9 Thursday, June 18, 1998 9:27 AM