Because of the reticular interconnections between SMGs, it is impossible that a secondary forwarding happens between gateways, therefore the gateway receiving the forwarded message must be able to determine whether the destination address of the forwarded
Because of the reticular interconnections between SMGs, it is impossible that a secondary forwarding happens between gateways, therefore the gateway receiving the forwarded message must be able to determine whether the destination address of the forwarded
由于SMG网关之间采用网状互联，网关之间不可能出现二次前转，因此接收前转消息的网关必须能判断前转的消息目的地址是否是本网关覆盖范围的用户，若不是，必须发送出错信息到前转网关。