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Specifications
NETBuilder II Intelligent Routers
Dimensions and Weight
4-Slot Chassis
Length: 40.4 cm/15.9 in
Width: 44.2 cm/17.4 in
Height: 13.5 cm/5.3 in
Weight: 13.6 kg/30.0 lb
8-Slot Chassis
Length: 42.4 cm/16.7 in
Width: 44.2 cm/17.4 in
Height: 18.5 cm/7.3 in
Weight: 22.7 kg/50.0 lb
8-Slot Extended Chassis
Length: 49.2 cm/19.4 in
Width: 44.2 cm/17.4 in
Height: 53.3 cm/21.0 in
Weight: 42 kg/91 lb
(one power supply)
50 kg/109 lb (two power supplies)
Dual Power Supply for 8-Slot Chassis
Length: 41.3 cm/16.25 in
Width: 44.2 cm/17.4 in
Height: 13.0 cm/5.1 in
Weight: 12 kg/27 lb
NETBuilder II WAN Extender
Length: 43.9 cm/17.3 in
Width: 38.9 cm/15.3 in
Height: 4.3 cm/1.7 in
Weight: 4.7 kg/10.3 lb
Power Requirements
4-Slot Chassis
90–120 VAC, 4763 Hz, 2.3 A
180–264 VAC, 4763 Hz, 1.4 A
117 W
8-Slot Chassis
90–120 VAC, 4763 Hz, 4.1 A
180–264 VAC, 4763 Hz, 1.4 A
170 W
8-Slot Extended Chassis
90–132 VAC, 47–63 Hz, 12.3 A max.
180–264 VAC, 47–63 Hz, 6.2 A max.
700 W
Environmental Ranges
4-Slot and 8-Slot Chassis
Temperature: 41° to 104°F
(5° to 40°C)
Humidity: 20% to 80%
noncondensing
8-Slot Extended Chassis
Temperature: 32° to 122°F
(0° to 50°C)
Humidity: 10% to 90%
noncondensing
Thermal Rating
4-Slot Chassis
Max. output: 400 BTU/hour
8-Slot Chassis
Max. output: 580 BTU/hour
8-Slot Extended Chassis
Max. output per power module: 1389
BTU/hour
Noise Level
4-Slot Chassis
48.5 db at 1.5 m
50.6 db at 1 m
8-Slot Chassis
46.5 db at 1.5 m
48.5 db at 1 m
8-Slot Extended Chassis
One Power Supply
42.5 db at 1.5 m
44.0 db at 1 m
Two Power Supplies
47.4 db at 1.5 m
46.5 db at 1 m
Reliability
Mean Time Between Failures (MTBF)
Based on MILSPEC (217.E) at 25°C
Product
MTBF (hours)
NETBuilder II WAN Extender
20,190
Dual Processor Engine Card (DPE)
87,000
ATM UNI
286,000
Ethernet Module
227,469
Ethernet 2-Port
10BASE-FL Module
195,238
MP Ethernet 6-Port
10BASE-T Module
110,000
MP Ethernet 6-Port
10BASE-FL Module
128,000
Fast Ethernet 100BASE-TX Module 344,823
Fast Ethernet 100BASE-FX Module 362,000
FDDILink
188,000
Token Ring+ Module
309,761
HSS 8-Port BRI S/T Module
46,000
HSS 8-Port BRI U Module
58,000
HSS Module RS-449
240,774
HSS Module G.703
287,891
HSSI Module
120,000
4-Slot Power Supply
82,413
8-Slot Power Supply
103,495
8-Slot Extended Power Supply
112,000
Front Panel Card
1,032,268
Backplane
2,333,558
Mean Time to Repair (MTTR)
This table specifies the time it takes to
mechanically replace each of the compo-
nents listed, assuming fault isolation has
taken place.
Product
MTTR (minutes)
Dual Processor Engine Card (DPE)
<1
Interface Modules
<1
4-Slot Power Supply
<30
8-Slot Power Supply
<5
8-Slot Extended Power Supply
<1
Front Panel Card,
8-Slot Extended Chassis
<5
Front Panel Card,
4- and 8-Slot Chassis
<30
Backplane
<90
Supported Standards
IEEE Standards
802.1d
MAC Bridging
802.1e
System Load
Protocol (SLP)
802.1i
MAC Bridges FDDI
Supplement
802.1d,
IBM Token Ring
Annex C
Architecture (source route
bridging)
IEEE Recommended Practice
P802.h
MAC Bridging of
(proposed)
Ethernet Version 2.0 in 802
LANs
ANSI Standards
X3T9/90
FDDI Station Management
(SMT) Revision 6.2/7.3
T1/S1, Standards
for
T1.617
Frame Relay Link
Annex D
Management Interface
ITU-T (CCITT) Standards
I.430
Basic user network
interface—Layer 1
specification
Q.921
ISDN user network
interface—Data Link Layer
specification
Q.922 Frame
Relay
Annex D
Q.2110
Broadband Integrated
Services Digital Network
(B-ISDN) ATM Adaptation
Layer—service specific con-
nection oriented protocol
(SSCOP) per ATM UNI 3.1
Q.2931
B-ISDN Digital subscriber
signaling system no. 2
(DS52) user network
interface Layer 3 specifica-
tions for basic cell/connec-
tion control per ATM UNI
3.0, 3.1
Q.931
ISDN user network inter-
face—Layer 3 specification
for basic call control
X.3
Packet Assembly/
Disassembly (PAD) facility in
a public data network
X.28
DTE/DCE interface for start/
stop DTE accessing a PAD
X.29
Exchange control information
and user data between a PAD
and DTE or PAD
V.25bis
Automatic call/answering
signaling interface on gen-
eral PSTN
I
nternet Standards
RFC 768
User Datagram Protocol
(UDP)
RFC 791
Internet Protocol (IP); equiv-
alent to MIL STD 1777
RFC 792
Internet Control Message
Protocol (ICMP)
RFC 793
Transmission Control
Protocol (TCP); equivalent to
MIL STD 1778
RFC 826
Ethernet Address Resolution
Protocol (ARP)
RFC 827
Exterior Gateway Protocol
(EGP)
RFC 854
Telnet
RFC 855
Telnet option specification
RFC 856
Telnet binary transmission
RFC 857
Telnet echo option
RFC 858
Telnet suppress go ahead
option
RFC 888
Exterior Gateway Protocol
(EGP)
RFC 894
IP datagrams over Ethernet
networks
RFC 903
Reverse ARP RFC 904
RFC 906
Bootstrap loading using TFTP
RFC 919
Broadcast Internet data-
grams
RFC 922
Broadcast Internet data-
grams in the presence of
subnets
RFC 950
Internet standard subnetting
procedure
RFC 951
Bootstrap Protocol (BootP)
RFC 959
File Transfer Protocol
RFC 1009
Requirements for Internet
gateways
RFC 1027
Proxy ARP
RFC 1034/5
Domain names
RFC 1042
IP datagrams over IEEE 802
networks
RFC 1058
Routing Information Protocol
(RIP)
RFC 1108
Revised IP security
RFC 1122
Requirements for Internet
hosts (routers)
RFC 1141
Incremental updating of the
Internet checksum
RFC 1155
Structure and identification
of MIBs
RFC 1156
MIB I
RFC 1157
SNMP
RFC 1172
IP Control Protocol (IPCP)
RFC 1188
IP datagrams over FDDI net-
works
RFC 1191
Path MTU discovery
RFC 1195
Use of OSI IS-IS for routing
TCP/IP
RFC 1209
Transmission of IP data-
grams over SMDS
RFC 1212
Concise MIB definitions
RFC 1213
MIB II (with extensions)
RFC 1220
PPP extensions for bridging
RFC 1231
Token Ring MIB
RFC 1236
IP to X.121 address mapping
for DDN
RFC 1243
AppleTalk MIB
RFC 1247
OSPF Version 2
RFC 1253
OSPF Version 2 MIB (with
extensions)
RFC 1256
Router Discovery
RFC 1271
RMON MIB, alarm, and event
groups
RFC 1284
Ethernet-like MIB
RFC 1285
FDDI MIB (with extensions)
RFC 1286
Bridge MIB (with extensions)
RFC 1293
Inverse ARP
RFC 1304
SMDS MIB
RFC 1305
NTP Client
RFC 1315
Frame Relay DTE MIB (with
extensions)
RFC 1332
PPP Internet Protocol Control
Protocol (IPCP)
RFC 1334
Password Authentication
Protocol (PAP): Challenge
Handshake Authentication
Protocol (CHAP)
RFC 1338
(Supernetting) CIDR
RFC 1347
TCP and UDP with Bigger
Addresses (TUBA)
RFC 1350
Trivial File Transfer Protocol
(TFTP) revision 2 (obsoletes
RFC 783)
RFC 1354
IP forwarding MIB
RFC 1356
Multiprotocol Interconnect
on X.25 and ISDN in packet
mode (obsoletes RFC 877)
RFC 1376
PPP DECnet Phase IV Control
Protocol
RFC 1377
PPP for OSI network layer
control
RFC 1398
Ethernet MIB
RFC 1434
Data Link Switching (DLSw)
RFC 1483
Multiprotocol encapsulation
over ATM Adaptation Layer 5
RFC 1490
QLLC/LLC2 Conversion
RFC 1541/
Dynamic Host Configuration
1542
Protocol (DHCP)*
*3Com passes DHCP requests but does not
act as a client
RFC 1551
Novell IPX over various WAN
media (IPX WAN)
RFC 1570
PPP LCP extensions
RFC 1593
APPN MIB definition
RFC 1634
IPX WAN 2
(obsoletes RFC 1362)
RFC 1661
Point-to-Point Protocol
(obsoletes RFCs 1171, 1331)
RFC 1717
PPP Multilink Protocol
NBII ds 400165-013 7/7/98 12:15 PM Page 7
