Cisco CX-TRIP2 Manuale dell'operatore
1
Customer Order Number:
Copyright © 1995
Cisco Systems, Inc.
All rights reserved.
Documentation Part Number:
Token Ring Interface Processor (TRIP)
Installation and Configuration
Product Numbers: CX-TRIP2 and CX-TRIP4
This document provides instructions for installing the Token Ring interface processor (TRIP) in your
Cisco 7000 and Cisco 7500 series routers. The TRIP provides two or four IEEE 802.5 Token Ring
network interfaces.
The sections in this document include the following:
•Product Description, page 2
•Installation Prerequisites, page 11
•Installation, page 16
•Checking the Installation, page 19
•Configuring the Interfaces, page 20
•Checking the Configuration, page 24
•Upgrading Microcode, page 25
•Cisco Information Online, page 28
Before beginning the installation, read this entire document to ensure that you have all the necessary
tools and equipment and that you have the correct modules for your system configuration.
DOC-781065=
78-1065-03
2Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
Product Description
This section contains a detailed description of the Token Ring interface processor (TRIP). The TRIP,
shown in Figure 1, provides two or four Token Ring ports for interconnection with IEEE 802.5 and
IBM Token Ring media. The TRIP uses the IBM 16/4-Mbps chipset with an imbedded performance
enhanced interface driver and 16.7 MHz bit slice processor for high speed processing. The speed on
each port is set independently with a software command for either 4 or 16 Mbps. The TRIP firmware
(microcode), which contains card-specific software instructions, resides in a ROM in socket U41.
You may need to replace this component in the future to enable new features or enhancements (if so,
replacement instructions will be provided with the replacement component in an upgrade kit). The
TRIP and all other interface processors support online insertion and removal (OIR), which allows
you to remove and install a TRIP while the system is operating, without shutting down system
power.
Figure 1 Token Ring Interface Processor (TRIP)
Note The interface processor metal carrier contains the printed circuit board for the TRIP. To
prevent electrostatic damage (ESD), we recommend that you never remove or separate the printed
circuit board from the metal carrier.
Interface processor slots are accessed from the rear of the chassis. The TRIP can be installed in any
available interface processor slot. Each port on the TRIP requires a media access unit (MAU) to
connect the DE-9TRIP connectors to the external Token Ring networks.
TRIP LEDs The enabled LED light on the TRIP lights to indicate the following status of the TRIP:
•Enabled for operation
•Correctly connected to the backplane
•Receiving power
•Contains a valid microcode version
If any of these conditions is not met, or if the initialization fails for other reasons, the Enabled LED
does not light.
H2006
U41,
microcode ROM
Enabled
0123
16Mbps
4Mbps
IN RING
Token Ring Interface Processor (TRIP) Installation and Configuration 3
Product Description
When a Token Ring interface is configured by using software commands, three LEDs for each port
indicate the following:
•16 Mbps—Lights if the interface is operating at 16 Mbps.
•4 Mbps—Lights if the interface is operating at 4 Mbps.
•In Ring—When lit, indicates that the interface is currently active and inserted into the ring. When
not lit, the interface is not active and is not inserted into a ring.
Token Ring Connection Equipment
You will need an 802.5 MAU or a multistation access unit (MSAU) to provide the interface between
the TRIP Token Ring interfaces and the external ring, and a Token Ring lobe cable between each
TRIP port and the MAU or MSAU. Lobe cables connect each Token Ring station (TRIP port) to the
MAU or MSAU, and patch cables can connect adjacent MSAUs to form one large ring.
TRIP ports operate at either 4 or 16 Mbps. The default speed for all TRIP ports is 4 Mbps, which
you can change to 16 Mbps on any port using the configuration command ring-speed n, where nis
the speed (4 or 16) in Mbps. The speed of each Token Ring port must match the speed of the ring to
which it is connected. Before you enable the Token Ring interfaces, ensure that each is set for the
correct speed, or it can bring down the ring.
Caution Each TRIP port must be configured for the same ring speed as the ring to which it is
connected, either 4 or 16 Mbps. If the port is set for a different speed, it will cause the ring to beacon,
which effectively brings the ring down and makes it inoperable.
Token Ring Cables and Connectors
The Token Ring ports on the TRIP are DB-9 (PC type) receptacles that require Type 1 or Type 3 lobe
cables. Type 1 lobe cables use shielded twisted pair cable and terminate at the network end with a
large MAU plug. (See Figure 2.) Type 3 lobe cables use either shielded or unshielded twisted pair
(UTP) cable and terminate at the network end with an RJ-11 plug. (See Figure 2.) The TRIP end of
both cable types is a DB-9 plug.
Figure 2 Token Ring Type 1 Lobe Cable Connectors, DB-9 and MAU Types
H2056
TRIP end
MSAU or
MAU end
4Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
Figure 3 Token Ring Type 3 Lobe Cable Connectors, DB-9 and RJ-11 Types
Token Ring Physical Connections
The term Token Ring refers to both IBM’s Token Ring Network, which IBM developed in the 1970s,
and to IEEE 802.5 networks. The IEEE 802.5 specification was modeled after, and still closely
shadows, IBM’s network. The two types are compatible, although the specifications differ slightly.
Token Ring and IEEE 802.5 are token passing networks, which move a small frame, called a token,
around the network. Possession of the token grants the right to transmit; a station with information
to transmit must wait until it detects a free token passing by.
The IBM Token Ring specifies a star topology, with all end stations connected through a device
called a multistation access unit (MSAU). IEEE 802.5 does not specify any topology, although most
implementations are based on a star configuration with end stations attached to a device called a
media access unit (MAU). Also, IBM Token Ring specifies twisted-pair cabling, whereas IEEE
802.5 does not specify media type. Most Token Ring networks use shielded twisted-pair cabling;
however, some networks that operate at 4 Mbps use unshielded twisted-pair cable. Table 1 shows a
comparison of the two types.
Table 1 IBM Token Ring and IEEE 802.5 Comparison
Network Type Data Rates Stations/ Segment Topology Media Signaling Access
Method Encoding
IBM Token Ring
network 4, 16 Mbps 260 shielded twisted-pair
72 unshielded twisted-pair Star Twisted
pair Baseband Token passing Differential
Manchester
IEEE 802.5 network 4, 16 Mbps 250 Not
specified Not
specified Baseband Token passing Differential
Manchester
H2055
TRIP end
MAU end
Token Ring Interface Processor (TRIP) Installation and Configuration 5
Product Description
In the typical Token Ring network shown in Figure 4, lobe cables connect each Token Ring station
(TRIP port) to the MSAU (or MAU), and patch cables connect adjacent MSAUs (or MAUs) to form
one large ring.
Figure 4 Token Ring Network Physical Connections
All TRIP ports support both 4- and 16-Mbps operation and early token release. The default for all
ports is for 4 Mbps operation and early token release disabled. Both states are enabled with
configuration commands in the configuration mode. To enable 16 Mbps, specify the slot/port
address and use the configuration command ring-speed 16; to return to 4 Mbps operation, use the
command ring-speed 4. To enable and disable early token release, specify the slot/port address and
use the configuration command [no]early token release. For complete descriptions and examples
of software commands, refer to the related software configuration documentation.
Ring
in12345678
Ring
out
Stations
Ring
in12345678
Ring
out
Stations
MAU or MSAU
Ring
in12345678
Ring
out
Stations
Ring
in12345678
Ring
out
Stations
Lobe
cables
Patch
cables
H2058
MAU or MSAU
MAU or MSAU
MAU or MSAU
6Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
What is the Cisco 7000 Series?
Network interfaces reside on modular interface processors, which provide a direct connection
between your external network and the high speed Cisco Extended Bus (CxBus) in the Cisco 7000
series routers, and the CyBus in the Cisco 7500 series routers.
Figure 5 and Figure 6 show the rear of the Cisco 7000 series routers: the seven-slot Cisco 7000 and
the five-slot Cisco 7010. Access to the processor slots and the removable power supplies is from the
rear, as shown. Two slots are reserved for the Route Processor (RP), which contains the system
processor, and the Switch Processor (SP) (or Silicon Switch Processor [SSP]), which performs
packetswitchingfunctions. The remainingslots support anycombinationofnetworkinterfacetypes:
channel attachment, serial, Ethernet, Fast Ethernet, multichannel interface, Token Ring, Fiber
Distributed Data Interface (FDDI), or High-Speed Serial Interface (HSSI).
Figure 5 Cisco 7000, Interface Processor End
H2358
Slot 0 123 4 SP
or
SSP
slot
RP
slot
Upper
power supply
Lower
power supply
I
O
DC FAIL
AC POWER
I
O
DC FAIL
AC POWER
Captive
installation screw
Captive
installation screw
Token Ring Interface Processor (TRIP) Installation and Configuration 7
Product Description
Figure 6 Cisco 7010, Interface Processor End
H2359
RP slot
SP or SSP slot
Interface processor slot 1
DC OK LED
Power switch
Chassis ground
screw
Power receptacle
Interface processor slot 2
Interface processor slot 0
AC-input power supply
8Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
What is the Cisco 7500 Series?
The Cisco 7500 series consists of three router models: the Cisco 7505, the Cisco 7507, and the Cisco
7513. All three models provide high reliability, availability, serviceability, and performance. The
three systems support multiprotocol, multimedia routing, and bridging with a wide variety of
protocols and any combination of Ethernet, Fast Ethernet, Token Ring, Fiber Distributed Data
Interface (FDDI), serial, multichannel, channel attachment, and High-Speed Serial Interface (HSSI)
media. Network interfaces reside on modular interface processors, which provide a direct
connectionbetween thehigh-speed, 1.067-gigabits-per-second(Gbps) CiscoExtended Bus (CyBus)
and the external networks.
Note The Cisco 7507 and Cisco 7513 have dual CyBuses, for an aggregate bandwidth of
2.134 Gpbs.
Figure 7 shows the rear of the five-slot Cisco 7505 router. In the Cisco 7505, one slot (4) is reserved
for the Route Switch Processor (RSP1), which contains the system processor and performs packet
switching functions. Slots 0 through 3 are for interface processors.
Figure 7 Cisco 7505, Interface Processor End
H2761
RSP slot
DC OK LED
o
wer switch
Chassis
grounding
receptacles
Power receptacle AC-input power supply
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR
ENABLE
ENABLE
Interface processor slot 1
Interface processor slot 2
Interface processor slot 0
Interface processor slot 3
Token Ring Interface Processor (TRIP) Installation and Configuration 9
Product Description
Figure 8 shows the rear of the seven-slot Cisco 7507 router. In the Cisco 7507, up to two slots (2 and
3) are reserved for the Route Switch Processor (RSP2), which contains the system processor and
performs packet switching functions. Slots 0 and 1, and 4 through 6 are for interface processors.
Figure 8 Cisco 7507, Interface Processor End
ENABLE
ENABLE
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR 2
SLAVE
MASTER
SLAVE/MASTER
H3888
Slot 0 1234 5 6
U
pper
ower supply
C
hassis
g
rounding
e
ceptacles
L
ower
ower supply
I
O
DC FAIL
AC POWER
I
O
DC FAIL
AC POWER
RSP slots
C
aptive
n
stallation screw
C
aptive
n
stallation screw
10 Token Ring Interface Processor (TRIP) Installation and Configuration
Product Description
Figure 9 shows the rear of the Cisco 7513, with two AC-input power supplies installed. Two slots (6
and 7) are reserved for the second generation Route Switch Processor (RSP2), which contains the
system processor and performs packet switching functions. Slots 0 through 5, and 8 through 12 are
for interface processors.
Figure 9 Cisco 7513, Interface Processor End
ENABLE
ENABLE
H3087
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR 2
SLAVE
MASTER
SLAVE/MASTER
0
I
FAIL
POWER
B
POWER
A
Blower module
Cable-management
bracket
Card cage and
processor modules
Air intake vent
Power supplies
Chassis grounding
receptacle (2)
OK OK
AC FAN OUTPUT
0
I
OK OK FAIL
AC FAN OUTPUT
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