Chapter 4. Connectivity 121
Considerations
The z/OS Communications Server V1R7 has improved and optimized Sysplex IP routing. In a
Sysplex environment, you may prefer to use a connection other than a Coupling Facility link
for cross-server connectivity because XCF is heavily used by other workloads (in particular,
for distributed application data sharing). This option can be configured with the VIPAROUTE
statement in the VIPADYNAMIC statement and allows for the use of OSA-Express features
such as Gigabit Ethernet and 10 Gigabit Ethernet. For details refer to Communications Server
for z/OS V1R7 TCP/IP Implementation, Volume 3 - High Availability, Scalability, and
Performance, SG24-7171.
4.4 How connectivity is implemented
In this section we show the implementation details for the most commonly used interfaces,
which include:
“OSA-Express implementation with VLAN ID” on page 122
“HiperSockets implementation” on page 125
“DYNAMICXCF implementation” on page 127
When these implementation tasks are finished, we will have the configuration shown in
Figure 4-11.
Figure 4-11 ITSO test environment
OSA IP addresses
2080: 10.10.2.232
20A0: 10.10.3.233
20C0: 10.10.2.234
20E0: 10.10.3.235
HiperSockets IP addresses
CHPID F4: 10.10.4.234
CHPID F5: 10.10.4.235
CHPID F6: 10.10.5.236
DYNAMICXF
HiperSockets IP address
CHPID F7 10.20.10.100
z/OS LPAR: A23
Static VIPA: 10.10.1.230
OSA IP addresses
2080: 10.10.2.242
20A0: 10.10.3.243
20C0: 10.10.2.244
20E0: 10.10.3.245
HiperSockets IP addresses
CHPID F4: 10.10.4.244
CHPID F5: 10.10.4.245
CHPID F6: 10.10.5.246
DYNAMICXF
HiperSockets IP address
CHPID F7 10.20.10.101
z/OS LPAR: A24
Static VIPA: 10.10.1.241
OSA IP addresses
2080: 10.10.2.222
20A0: 10.10.3.223
20C0: 10.10.2.224
20E0: 10.10.3.225
HiperSockets IP addresses
CHPID F4: 10.10.4.224
CHPID F5: 10.10.4.225
CHPID F6: 10.10.5.226
DYNAMICXF
HiperSockets IP address
CHPID F7 10.20.10.102
z/OS LPAR: A22
Static VIPA: 10.10.1.221
CHPID: F4
Devices: E800-E81F
CHPID: F5
Devices: E900-E91F
CHPID: F6
Devices: EA00-EA1F
CHPID: F7
VLAN 10
IP address
10.10.2.1
Trunk (VLAN 10, 11)
VLAN 11
IP address
10.10.3.1
IP Network
OSA-Express 1000BASE-T
HiperSockets
System z9
DYNAMICXCF
HiperSockets
CF38
CF LPAR:
A2E
CHPID 04
20C0-20CF
CHPID 05
20E0-20EF
CHPID 02
2080-208F
CHPID 03
20A0-20AF
Cisco
6509
Cisco
6509
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