This attribute specifies the urgency with which packets on the path
are emitted by the trunks on the route. An EmissionPriority of zero
indicates the highest emission priority, while two indicates the
lowest emission priority. Packets with a higher emissionPriority (or
numerically less) are serviced and sent out before the packets of
lower emissionPriority (or numerically higher). The default value
for this attribute (sameAsApplication) will cause the connection's
emissionPriority to be inherited from the user of the profile. In other
words, setting this attribute to anything other than the default acts as
an override to the priority normally used by the application linked
to this profile.