Configuration of routera

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 13 on page 147 through Table 18 on page 148.

The configuration parameters for the remaining elements are described in the following sections.

6.1.1 System Configuration

System configuration comprises many components. Those components that should be configured to implement this scenario are summarized in Table 45.

Table 45. routera - System Configuration Summary

SR Bridge IP IPX XNS OECnet OLS

Yes Yes No No No No

158

The IP component of system configuration is identical to that for the first example scenario described in Chapter 5, "Basic TCP/IP Example Scenario" on page 145. See Table 11 on page 146 and Table 12 on page 146.

Each of the remaining system configuration components that must be configured to support this scenario are described in the following sections.

6.1.1.1 SR Bridge

Table 46. routera - System Configuration - SR Bridge

Enable Source Route Bridging Yes Bridge Number 1

Designated Ring Number X'600' Bridge Priority 8000

Hello Time 2 Forward Delay Time 15

Max Age 20

6.1.2 Adapter Configuration

The communication adapter features installed and interfaces used in this scenario are summarized in Table 47.

Table 47. routera - Adapter Configuration - Summary

Slot Adapter Port 0 Port 1 Port 2 Port 3

1 6611 2-Port Serial Adapter N/A PPP Not Used N/A

2 6611 Token-Ring Network 16/4 Adapter N/A Used N/A N/A

3 6611 4-Port SDLC Adapter Not Used Not Used Not Used Not Used

4 6611 Ethernet Adapter N/A Not Used N/A N/A

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.

6.1.2.1 Slot 1, Port 1 (Serial): This communication interface is used to provide the PPP link to the other router (" routerb"). A summary of the parameters that should be configured for this interface to implement this scenario is provided in Table 48.

Table 4B. routera - Slot 1 J Port 1 (Serial) - Summary

Physical PPP SR Bridge SR Bridge IP IPX XNS DECnet 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 21 on page 149 through Table 23 on page 149.

The parameters required to configure SR bridge are listed in Table 49 on page 160.

Chapter 6 Remote Source Route Bridging Example Scenario

159

Table 49. routera - Slot 1, 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 50.

Table 50. routera - Slot 1, 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

Inbounc^l 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 51. The outbound SNAP value filter should be configured to operate as a "Deny" filter.

Table 51. routera - 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 ' ^{XI FFFF'} X '0806^{1 XI FFFF I} X '8035^{1 XI 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 ^I 0806 1) or RARP (X 18035 1) are prevented from crossing this interface.

Note: This filter does not prevent TCP/IP traffic from crossing this interface via the IP routing function.

6.1.2.2 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 52.

Table 52. routera - Slot 2, Port 1 (Token Ring) - Summary

Physical Interface SR Bridge SR Bridge Filters IP IPX XNS DECnet 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 25 on page 150 and Table 26 on page 150.

The parameters required to configure SR bridge are listed in Table 53.

Table 53 (Page 1 of 2). routera - Slot 2, Port 1 (Token Ring) - SR Bridge

Enable SR Bridging On This Port Yes Ring Number X'600 '

Maximum Transmission Unit 1500 Spanning Tree Mode Automatic

160

Table 53 (Page 2 of 2). routera - Slot 2, Port 1 (Token Ring) - SR Bridge

Path Cost

I

I

I

The parameters required to configure SR bridge filters are summarized in Table 54.

Table 54. routera - 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

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