Hardware Reference
7
C613-03092-00 REV J
Processing core
■
350 MHz RISC Processor
■
32 MBytes of on-board flash
■
256 MBytes of Synchronous DRAM, expandable to 512 MBytes with DIMM
■
CompactFlash slot for hot-swappable expansion of flash memory
■
512 kBytes of SRAM
■
32/66 PCI bus for 32-bit/33 MHz
■
Silicon ID chip stores serial number, board ID, and MAC address
IPv6 accelerator card
AT-8948 switches have a slot for an optional AT-ACC01 network processor
accelerator card to provide accelerated unicast and multicast routing in
hardware:
■
4096 Layer 3 IPv6 multicast entries
■
1000 accelerator hardware filters
■
128 MBytes Synchronous DRAM giving 64 K IPv6 routes
AT-8948 and
x900-48FE switches
Key features are:
■
Autonegotiating, multi-layer Fast Ethernet switch
■
48 x 10BASE-T/100BASE-TX ports (RJ-45 connectors), auto MDI/MDI-X,
full or half duplex
■
4 x 1000BASE-X SFP uplink port, 1000 Mbps, full duplex
■
Hot-swappable, load sharing PSUs
■
NEBS compliant model x900-48FE-N available
■
Optional AT-ACC01 network processor accelerator card for the AT-8948
switch
x900-48FE front panel
x900-48FS switch
Key features are:
■
Multi-layer Fast Ethernet switch
■
48 x 100BASE-X SFP ports, 100 Mbps, full or half duplex
■
4 x 1000BASE-X SFP uplink ports, 1000 Mbps, full duplex
■
Support for hot-swappable SFP modules
■
Hot-swappable, load sharing PSUs
x900-48FS front panel
49 50 51 52
RESET
FAULT
PSU 1
PSU 2
CF
L/A
L/A
SFP
1 2
3 4
5 6
7 8
9 10 11
12 13
14 15
16
D/C
ENABLED
FAULT
SFP
PORTS 49-52
L/A
LINK
L/A
ACT
D/C
FULL DUP
HALF DUP
COL
ACT
L/A
LINK 100M
ACT
LINK 10M
L/A
L/A
PORTS 1-48
Advanced L3 Switch
ASYN0/CONS
17
18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33
34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
ASYN0/CONS
