1. Configuring Frame Relay Ports
Module 2

2. Module Objectives
After successfully completing this module, you should be able to:
Describe the B-STDX 9000 hardware architecture
Describe the data path of a Frame Relay packet through the B-STDX 9000
Configure a physical port on a non-TDM or TDM-based IOP
Configure a UNI DCE and NNI logical port
Verify that a physical and logical port are operable by viewing the proper statistic screens
Modify a logical port parameter
Create and use a logical port template

3. IOP to Cell Bus Interface
B-STDX 8000/9000 Architecture
Control Processors CP CP
I/O Processors
IOP
IOP
IOP to IOA Interface
IOP .
IOP to Cell Bus Interface
CP Adapter
Cell
Bus
I/O Adapters

4. B-STDX Control Processor (CP) Module Highlights
Back: CP Adapter - Slots 1 and 2
Front: CP - Slots 1 and 2
Modem Port (Not Supported)
Switch Status LED
Audible Alarm
Card Status LED
Ethernet AUI Port
Redundant Status LED
RS-232 Serial Port
CP module contains
RISC processor
Flash memory (CP Basic, CP Plus) or PCMCIA hard drive (CP30, CP40, CP50) containing operating system, boot code
Parameter RAM (PRAM)
Cell bus arbitration/control logic
Ethernet port
RS-232 serial port

5. B-STDX I/O Processor (IOP) Highlights
Available I/O Processors
Every IOP contains
An i960 RISC processor
RAM
Parameter RAM (PRAM)
IOP Module Port Speeds Port Capacity
Universal IO Mbps 8 - V.35 or 8 - X.21
Channelized 24 or / Bund T1,
T1/E1 Kbps channels Bund E1
HSSI 45 Mbps 2 HSSI
DSX Mbps 10 DSX-1
ATM UNI T3/E3 45 Mbps (DS DS3/E3
34 Mbps (E3)
ATM CS DS3/E3 45 Mbps (DS3) 1 - DS3/E3
ATM IWU OC3c/ 155 Mbps 1 - OC-3c (single or multimode)
STM STM-1 (single or multimode)
Channelized DS3 45 Mbps Bund T3

6. Data Flow
Internal Cell Bus
Front
Back
Control Processor (CP)
Slot 1
Redundant Control
Processor (CP)
Slot 2
IOP
Slot 3 1
IOP
Frame Relay
Packet In
Slot 4 2
IOP
Slot 5
IOP
Slot 6 3
Frame Relay
Packet Out
Slot 16
-Documentation on hardware or hardware-related issues: J:\project\magenta\Archit\1_5_93.doc (magenta hw architecture)
J:\project\magenta\Backpl\Bussstuff\ls_cb (cell bus spec)
Frame clocked in on ingress port, frame header read to determine circuit/egress port
Frame cells moved across internal bus
Frame reassembled, buffered, and transmitted out egress port

7. Configuring a Frame Relay Port
UNI DCE
Pport
NNI
Pport
Steps
Configure a physical port (Pport)
Set physical port parameters (clock speed, clock source, framing)
Configure a logical port (Lport)
Define port as UNI DCE, NNI, or UNI DTE
Verify that LMI is up
Details on following pages

8. Setting Physical Port Attributes (TDM)
From map window, choose Administer => Cascade Parameters => Set Parameters
Double-click on port
Set framing
Set zero encoding scheme
Set clock source
Allocate bandwidth

9. Setting Physical Port Attributes (Non-TDM)
From map window, choose Administer => Cascade Parameters => Set Parameters
Set clock source
Double-click on port
Set clock speed

10. Pport Admin/Oper Status
Admin status (desired state)
Up = Enables immediate access to the port
Down = Saves the configuration in the database without activating the port
Also used when running diagnostics
Choose Apply to send admin status changes to the switch
Oper status (actual state)
Operational status of the specified port
Up = Port is operational
Down = Port is not operational

11. Pport Dialog Box Buttons
Logical Port
Enables configuration of the logical ports for this physical port
Get Oper Info
Displays a brief status for the physical port
Appears in the Oper Status window
Statistics
Displays the summary statistics for the physical port
Apply
Sends configuration changes to the switch and Sybase database
Close
Closes this dialog box

12. Pport Statistics Frames dropped due to port congestion
Frames dropped due to line-level errors

13. Adding a Logical Port
1. In the Set Physical Port Attributes window, click on Logical Port
2. In the Set All Logical Ports in Pport window, click on Add 1
Set service type to Frame Relay 2
Set Lport type

14. Setting Lport Attributes
Every logical port has four configuration parameter categories. Two categories must be configured:
1) Administrative
2) Link Mgmt
Optionally, you can configure:
3) Congestion Control
4) Trap Control

15. Lport Administrative Attributes
Set admin status
Assign name to Lport

16. Lport Link Mgmt Attributes
Select correct LMI Protocol
Leave LMI counters at defaults
(this example is for an NNI)

17. Lport Congestion Control Attributes

18. Lport Trap Control Attributes
Traps due to congestion or frame errors (on this
logical port) can be sent to NMS

19. Lport Statistics
1. Monitor => Cascade Object => Show Logical Ports
2. Select logical port and click on Statistics button

20. Modify Lport 1. Select Lport 2. Click on Modify
3. Click OK in Add Logical Port Type window 1 2 3

21. Lport Templates Previously created Lports that could
be used as templates

22. Module Summary
A Frame Relay port has two basic levels of configuration
Physical (Pport)
Logical (Lport)
The most common types of logical ports are UNI DCE and NNI
All logical ports have four categories of configuration attributes
Administrative
Congestion Control
Link Management
Trap Control
Logical port templates expedite configuring many logical ports with similar attributes