BCM567X BOARDCOM [Broadcom Corporation.], BCM567X Datasheet - Page 23

• Manufacturer Part Number: BCM567X
• Description: A Scalable Approach to Gigabit Ethernet Switch Design
• Manufacturer: BOARDCOM [Broadcom Corporation.]

06/27/02
L
The StrataXGS supports Layer 2 switching capabilities in hardware for greater performance. These capabilities are, auto-
learning MAC addresses, address lookup, and packet forwarding. StrataXGS GE switches can support 4096 VLANs, 256
Spanning Trees, 256 Layer 2 multicast sessions, and 16384 Layer 2 switch table entries.
L
At Layer 3, for increased performance, the hardware handles routing table lookup and forwarding. StrataXGS GE switches
can support 4096 Layer 3 routing table entries and 512 virtual router interfaces.
S
StrataXGS supports the IEEE 802.1x authentication framework for port-based network access control. Also, per-port
security is offered to avoid denial-of-service (DoS) attacks. This is achieved by denying access to certain MAC addresses
by programming bits in the routing table to be rejected.
Document
Note
AYER
AYER
ECURITY
Switch Function
VoIP call server (IP/PBX)
Layer 2 switching
Layer 3 switching (routing)
Billing and accounting
Bandwidth on demand
Policy management
DiffServ
802.1p/Q
Remote Monitoring (RMON)
Mirroring
Trunking
IP Multicast
Per-port security
The many rich features supported in the StrataXGS architecture are activated in different ways. Most
require some custom programming in addition to basic support in a StrataXGS chip.
2 F
3 F
1.
567x_569x-WP100-R
Basic features, noncustomized
EATURES
EATURES
Table 3: How Features
Broadcom
Fast Filter
Processor
Bro adco m Co rp or atio n
Chip/API Support
(minimal
initialization)
1
are Implemented
StrataXGS Features and Benefits in Depth
Software
programming by switch
designer
Page
17