Description of problem:
If a durable link is created on a broker, after broker is restarted, the link gets restored from the journal successfully. It is fully functional, but qpid-route tool displays the last error message:

[root@lzhaldyb-rhel64x ~]# qpid-route link list

Host            Port    Transport Durable  State             Last Error
=============================================================================
10.34.33.229    5672    tcp          Y     Operational       Unsupported transport type: tcp (/builddir/build/BUILD/qpid-0.22/cpp/src/qpid/broker/Broker.cpp:1234

There are two problems I see here:
1) Why the process of durable link recovery is accompanied by the error?
2) This error message does not make any sense. The tcp is a supported transport type.

Version-Release number of selected component (if applicable):
qpid-cpp-0.22-7

How reproducible:
100%

Steps to Reproduce:
1. Connect two brokers with a durable federation route:
qpid-config add exchange topic fed.ex --durable --broker <src_broker>
qpid-config add exchange topic fed.ex --durable --broker <dst_broker>
qpid-config add exchange queue dest.q --durable --broker <dst_broker>
qpid-config bind fed.ex dest.q key <dst_broker>
qpid-route route add <dst_broker> <src_broker> fed.ex key --durable
2. Restart the destination broker.
3. Send some messages to the source broker's fed.ex exchange using the key 'key'.

Actual results:
The messages get federated to the destination broker properly. The 'qpid-route link list' command, however, shows the last error "Unsupported transport type: tcp".

Expected results:
no 'last error' reported as a result of durable link recovery.

Additional info:
The error message from the broker's log:
[root@lzhaldyb-rhel64x ~]# grep -i error /var/lib/qpidd/qpidd.log 
2013-07-18 12:24:05 [Broker] error Link connection to 10.34.33.229:5672 failed: Unsupported transport type: tcp (/builddir/build/BUILD/qpid-0.22/cpp/src/qpid/broker/Broker.cpp:1234)
If the source broker is restarted, the error message says "Connection refused".