Release Notes

Network ports and protocols
68 Dell PS Series Configuration Guide
A Network ports and protocols
PS Series groups use a number of TCP and UDP protocols for group management, I/O operations, and
internal communication. If you have switches or routers set to block these protocols, you may need to unblock
them to allow management or I/O operations to work correctly. The required and optional protocols are listed
in the following sections.
A.1 Required ports and protocols
Table 39 lists the ports and protocols required for operating a PS Series iSCSI SAN.
Required ports and protocols
Type
Port
Protocol
Access
iSCSI
TCP
3260
iSCSI
To the group IP address and all individual member IP addresses
PS Series Internal
UDP
161
SNMP
Management operations
TCP
9876
Internal
iSCSI intra-system control
TCP
25555
Internal
Group communication
TCP
20002
Internal
Event logging
A.2 Optional ports and protocols
Table 40 lists the optional ports and protocols used for management and alerts. They are not required for
correct array operation, however blocking a port may reduce specific functionality.
Optional ports and protocols
Type
Port
Protocol
Access
CLI Management
TCP
23
Telnet
To group IP address
TCP
22
SSH
To group IP address
Web Based Management
TCP
80
HTTP
To group IP address
TCP
3002
GUI communication
To group IP address
TCP
3003
GUI communication
(encrypted)
To group IP address
SNMP