Serial Segment 788 Link
6.2 Configuration of routerb
This router is a 6611 Network Processor model 170. There are three elements of the 6611 Network Processor that are configured to support this scenario:
• System Configuration
• System Management
• Adapter Configuration
The system management configuration for this scenario is identical to that for the first scenario described in Chapter 5, "Basic TCP/IP Example Scenario" on page 145. See Table 30 on page 151 through Table 35 on page 152.
The configuration parameters for the remaining elements are described in the following sections.
6.2.1 System Configuration
System configuration comprises many components. Those components that should be configured to implement this scenario are summarized in Table 55.
Table 55. routerb - System Configuration Summary
SR Bridge IP IPX XNS DECnet DLS
Yes Yes No No No No
The IP component of system configuration is identical to that for the scenario described in Chapter 5,
"Basic TCP/I P Example Scenario" on page 145. See Table 28 on page 150 and Table 29 on page 151.
Each of the remaining system configuration components that must be configured to support this scenario are described in the following sections.
6.2.1.1 SR Bridge
Table 56 (Page 1 of 2). routerb - System Configuration - SR Bridge
Enable Source Rvute Bridging Yes Bridge Number 1
Designated Ring Number X ' 0131 Bridge Priority 8000
Hello Time 2 Forward Delay Time 15
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Table 56 (Page 2 of 2). routerb - System Configuration - SR Bridge
Max Age
I
20l I
6.2.2 Adapter Configuration
The communication adapter features installed and interfaces used in this scenario are summarized in Table 57.
Table 57. routerb - Adapter Configuration - Summary
Slot Adapter Port 0 Port 1 Port 2 Port 3
1 6611 2-Port Serial Adapter N/A PPP LAN Bridge N/A
2 6611 Token-Ring Network 16/4 Adapter N/A Used N/A N/A
3 Empty Slot 4 Empty Slot 5 Empty Slot 6 Empty Slot 7 Empty Slot
The configuration parameters for each communication interface that is used to implement this scenario are described in the following sections.
6.2.2.1 Slot 1, Port 1 (Serial): This communication interface is used to provide the PPP link to the other router ("routera"). A summary of the parameters that should be configured for this interface to implement this scenario is provided in Table 58.
Table 58. routerb - Slot 1 J Port 1 (Serial) - Summary
Physical PPP SR Bridge SR Bridge IP IPX XNS OECnet SNA NetBIOS
Interface Filters
Yes Yes Yes Yes Yes No No No No No
The physical interface, PPP and IP configuration parameters for this scenario are identical to those used in the first example scenario described in Chapter 5, "Basic TCP/IP Example Scenario" on page 145. See Table 38 on page 153 through Table 40 on page 153.
The parameters required to configure SR bridge are listed in Table 59.
Table 59. routerb - Slot 1 J Port 1 (Serial) - SR Bridge
Enable SR Bridging On This Port Yes Ring Number X'700'
Maximum Transmission Unit 1500 Spanning Tree Mode Automatic
Path Cost 0 Enable Forwarding Of Spanning Tree Packets N/A
The parameters required to configure SR bridge filters are summarized in Table 60.
Table 60 (Page 1 of 2). routerb - Slot 1 J Port 1 (Serial) - SR Bridge Filter Summary
Inbound MAC Address Disable Outbound MAC Address Disable Inbound Source SAP Disable Outbound Source SAP Enable
Inbound SNAP Value Disable Outbound SNAP Value Enable
162 IBM 6611 Network Processor
Table 60 (Page 2 of 2). routerb - Slot 1 J Port 1 (Serial) - SR Bridge Filter Summary
Inbound Ring Number Disable Outbound Ring Number Disable
Hop Count 7 Frame Type Both SRB and ARB
The outbound source SAP filter should be configured to operate as a "Deny" filter on both SRB and ARB frames. No SAPs need be specified as this filter is only being configured to support the use of the outbound SNAP value filter.
The parameters required to configure the outbound SNAP value filter are listed in Table 61. The outbound SNAP value filter should be configured to operate as a "Deny" filter.
Table 61. routerb - Slot 1 J Port 1 (Serial) - Outbound SNAP Value Filter
SNAP Value SNAP Value Mask SNAP Value SNAP Value Mask SNAP Value SNAP Value Mask X'0800 ' X I FFFF' X '08061 XI FFFF' X '80351 X I FFFF I
All TCP/IP traffic is prevented from crossing this interface via the source route bridging function by the outbound SNAP value filter. Any bridged frames that contain the SNAP values for IP (X 10800 1), ARP (X 10806 1) or RARP (X 18035 1) are prevented from crossing this interface.
Note: This filter does not prevent Tep/I P traffic from crossing this interface via the IP routing function.
6.2.2.2 Slot 1, Port 2 (Serial): This communication interface is used to provide the LAN bridging protocol link to the PS/2 bridge ("ps2bridge"). A summary of the parameters that should be configured for this interface to implement this scenario is provided in Table 62.
Table 62. routerb - Slot 1 J Port 2 (Serial) - Summary
Physical Interface LAN Bridge Port Defaults SR Bridge SR Bridge Filters SNA NetBIOS
Yes Yes Yes Yes No No
The parameters required to configure the physical interface are listed in Table 63.
Table 63. routerb - Slot 1 J Port 2 (Serial) - Physical Interface
Enable Interface Yes Cylink Serial Number
Serial Line Speed 56000 Data Encoding NRZI
LO,cally Administered MAC Address
The parameters required to configure the LAN bridge port defaults are listed in Table 64.
Table 64. routerb - Slot 1 J Port 2 (Serial) - LAN Bridge Port Defaults
Enable LAN Bridge PPP On This Port Yes Auto Reboot On Error Yes Performance Counter Threshold 10 Telecommunications Link Error Threshold 0
Memory Dump On Error No Event Log Drive No
Largest Frame Size 1500 Network Management Parameters Yes
The network management parameters required to implement this scenario are listed in Table 65 on page 164.
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Table 65. routerb - Slot 1, Port 2 (Serial) - Network Management
Enable Ring Parameter Server Yes Enable Ring Error Monitor Yes Enable Configuration Report Server Yes
Link Password 0 00000000 Link Password 1 00000000
Link Password 2 00000000 Link Password 3 00000000
The parameters required to configure SR bridge are listed in Table 66.
Table 66. routerb - Slot 1, Port 2 (Serial) - SR Bridge
Enable SR Bridging On This Port Yes Ring Number X'800'
Maximum Transmission Unit 1500 Spanning Tree Mode Automatic
Path Cost 0 Enable Forwarding Of Spanning Tree Packets N/A
The parameters required to configure SR bridge filters are summarized in Table 67.
Table 67. routerb - Slot 1, Port 2 (Serial) - SR Bridge Filter Summary
Inbound MAC Address Disable Outbound MAC Address Disable
Inbound Source SAP Disable Outbound Source SAP Disable
Inbound SNAP Value Disable Outbound SNAP Value Disable
Inbound Ring Number Disable Outbound Ring Number Disable
Hop Count 7 Frame Type Both SRB and ARB
6.2.2.3 Slot 2, Port 1 (Token Ring): This communication interface is used to provide access to a Token-Ring Network. A summary of the parameters that should be configured for this interface to implement this scenario is provided in Table 68.
Table 68. routerb - Slot 2, Port 1 (Token Ring) - Summary
Physical Interface SR Bridge SR Bridge Filters IP IPX XNS OECnet SNA NetBIOS
Yes Yes Yes Yes No No No No No
The physical interface and IP configuration parameters for this scenario are identical to those used in the first example scenario described in Chapter 5, "Basic TCP/IP Example Scenario" on page 145.
See Table 42 on page 154 and Table 43 on page 154.
The parameters required to configure SR bridge are listed in Table 69.
Table 69. routerb - Slot 2, Port 1 (Token Ring) - SR Bridge
Enable SR Bridging On This Port Yes Ring Number X'013'
Maximum Transmission Unit 1500 Spanning Tree Mode Automatic
Path Cost 0 Enable Forwarding Of Spanning Tree Packets N/A
The parameters required to configure SR bridge filters are summarized in Table 70.
Table 70 (Page 1 of 2). routerb - Slot 2, Port 1 (Token-Ring) - SR Bridge Filter Summary
Inbound MAC Address Disable Outbound MAC Address Disable
Inbound Source SAP Disable Outbound Source SAP Disable
164
IBM 6611 Network ProcessorTable 70 (Page 2 of 2). routerb - Slot 2, Port 1 (Token-Ring) - SR Bridge Filter Summary
Inbound SNAP Value Disable Outbound SNAP Value Disable
Inbound Ring Number Disable Outbound Ring Number Disable
Hop Count 7 Frame Type Both SRB and ARB
6.3 Configuration of Other Systems
Most of the other systems in this example scenario require no special configuration to make use of the bridged Token-Ring Network environment provided by the 6611 Network Processors. That is, they would be configured in exactly the same manner as if they were all attached to the same Token-Ring Network segment. This applies to the following systems in this example scenario:
• os2wkstn
• os2serv
• 3745
• 8230
However, there are some aspects of the configuration for "os2mgr" and "ps2bridge" that must be configured to interoperate correctly with the 6611 Network Processors. These aspects are described in the following sections.
6.3.1 Configuration of os2mgr
The only configuration considerations for "os2mgr" are the definition of a "Controlled Access Unit Qualifier" for the Token-Ring Network attached to "routera" that contains an 8230 CAU, and the definition of the PS/2 bridge.
A qualifier for the Token-Ring Network segment X 1600 1 must be defined within IBM LAN Network Manager to enable management of the 8230 in this example scenario. The value of the qualifier is the same as the Token-Ring Network segment number (that is, X 1600 I).
Note: To define a "Controlled Access Unit Qualifier" from within IBM LAN Network Manager, PTF UR37041 must first be applied to IBM LAN Network Manager.
To define "ps2bridge" to IBM LAN Network Manager the MAC address of the PS/2 TOken-Ring Network Adapter and the MAC address of the 6611 Token-Ring Network 16/4 Adapter attached to the designated segment is required. In this example scenario universally administered MAC addresses are used.
The universally administered MAC address of the PS/2 Token-Ring Network Adapter can be obtained using the "Ring Diagnostic" program supplied with the adapter option diskette.
The universally administered MAC address of the 6611 Token-Ring Network 16/4 Adapter can be obtained using the "View Hardware Vital Product Data" option of the "Hardware Vital Product Data"
System Manager menu. The MAC address obtained in this way must be converted from canonical to non-canonical form for use with IBM LAN Network Manager.
For IBM LAN Network Manager to successfully link to "ps2bridge" the "Reporting Link Password"
configured in IBM LAN Network Manager much match the appropriate" Link Password" configured for
"ps2bridge" on "routerb." In this example scenario, "00000000" was used for all the" Link
Passwords" when "routerb" was configured. This corresponds to a null "Reporting Link Password" in IBM LAN Network Manager.
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6.3.2 Configuration of ps2bridge
To interoperate with the 6611 Network Processor" routerb," the PS/2 bridge must be configured as the secondary half of a remote bridge configuration. That is, it must not have an "ECCPARMS.BIN" file present in the "R_BRIOGE" directory.
The "Communication Adapter Configuration" parameters for "ps2bridge" (stored in "ECCSBCF.BIN") are listed in Table 71 on page 166.
Table 71. ps2bridge - Communication Adapter Configuration
Link Data Rate 56000 Electrical Interface V.35
Communications Adapter Transmit Buffer Size 0 Bridge Mode Leased
A V.35 to RS-422/RS-449 interface converter and modems with V.35 interfaces were used to attach
"ps2bridge" to the slot 1, port 2, RS-422/RS-449 serial interface of "routerb."
Note: PTF UR37051 must be installed on the PS/2 bridge to support connection with the 6611 Network Processor.