Multi-Tech Systems 40-01459-D0-001 User Manual

Page 58

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52 PCI ESCON Adapter Installation Guide

Figure 6-5. TCP/IP Direct Connect Properties

; CTC connection

DEVICE DEVCTC1 CTC a40
LINK LINKCTC1 CTC 0 DEVCTC1

;

HOME

207.169.12.129 LINKCTC1

GATEWAY
;
; Direct Routes - Routes that are directly connected to my interfaces.
;
; Network

First Hop

Link Name Packet Size

Subnet Mask

Subnet Value

207.169.12.130 =

LINKCTC1

4096

255.255.255.192

0.0.0.128

START DEVCTC1

Figure 6-6. Mainframe TCP/IP Profile

2. Verify that the subchannel address defined in the TCP/IP Direct Connect

Properties screen (Figure 6-5) points to the correct device in the ESCON
configuration so that the Unit subchannel address assigned in the ESCON
configuration matches the DEVICE statement of the TCP/IP Profile (Figure 6-6).
In the example, ‘a40’ indicates a channel address of ‘a’ and a subchannel address
of ‘40’. Keep in mind that a CTC link actually uses two subchannels. Specifying
‘40’ implies that both subchannel ’40’ and ‘41’ will be used for this link.

3. Verify that the IP address and subnet mask defined in the Microsoft TCP/IP

Properties screen (Figure 5-19) match the server’s IP address and subnet mask
defined in the TCP/IP Profile as a direct route for this link (see Figure 6-6).

4. Verify that the mainframe’s IOCP has two consecutive devices defined as type

“SCTC” (serial Channel-to-Channel) with the first of these devices having a
subchannel address matching that defined in the DEVICE statement of the
TCP/IP Profile (Figure 6-6).

Home IP Address

Subchannel Address

Server’s IP Address

Subnet Mask

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