IBM z13s - G.1 Design of native PCIe I;O adapter management

494 IBM z13s Technical Guide
Figure D-15 shows an SMC-D configuration in which Ethernet provides the connectivity.
Figure D-15 SMC-D configuration that uses Ethernet to provide connectivity
IP Subnet ‘A’
z/OS A (LP 1) z/OS B (LP 2)
IBM z13 or z13s
ISM Network (PNet X)
OSA OSA
QDIOQDIO
PR/SM
Ethernet (PNet X)
ISM ISM
ISM ISM
IP In terface A.1
IP In terface A.2
VCHID X
ISM Network ‘X’
becomes a “logical
extension” of the
external Layer 2
Network ‘X’ (Eth ern et
LAN ‘X’)
Each host has an IP
network interface /
connection to a Layer 2
Network (with a defined
PNet ID X) associated with
IP subn et ‘A’
PNet X could be an
external LAN or an internal
HS Network (IQD VCHID
with PNetX)
Both hosts have access to the
same IP subnet
PNet X PNet X
ISM Network (PNet X)
OSA could be a shared
OSA or each LP can use
unique OSAs