Oracle Communications Diameter Signaling Router (DSR)
 

PLA-Support>Sun Systems>CommsGBU>Global Signaling Solutions>SN-SND: Tekelec DSR
 

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Symptoms

Cause

Solution

Created from <SR 3-14594485603>

Applies to:

Symptoms

Getting below error when creating peers from From Active SOAM: Main Menu: Diameter -> Configuration -> Peer Nodes

[Error Code 19027] - IP Address '<>' And SCTP Listen Port '<>' Combination Is Already Assigned To A Node

Cause

Defining 2 or more peers with same IP + Port combination is not allowed
 
According to RFC 4960 a SCTP endpoint should be unique address which means that same IP and Port cannot be used for multiple peers.

1.3. Key Terms

SCTP endpoint: The logical sender/receiver of SCTP packets. On a
multi-homed host, an SCTP endpoint is represented to its peers as
a combination of a set of eligible destination transport addresses
to which SCTP packets can be sent and a set of eligible source
transport addresses from which SCTP packets can be received. All
transport addresses used by an SCTP endpoint must use the same
port number, but can use multiple IP addresses. A transport
address used by an SCTP endpoint must not be used by another SCTP
endpoint. In other words, a transport address is unique to an
SCTP endpoint.

Transport address: A transport address is traditionally defined by
a network-layer address, a transport-layer protocol, and a
transport-layer port number. In the case of SCTP running over IP,
a transport address is defined by the combination of an IP address
and an SCTP port number (where SCTP is the transport protocol).
 

Solution

Define the peers with different IP + port combination
 

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