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In a CloudFabric intelligent lossless network, when the last two bits of the TOS field in the IP header are the following values, it means that the network is congested?
Correct Answer: C
Resolution: When a packet in the queue of a CP (Congestion Point) exceeds the Explicit Congestion Notification (ECN) threshold The CP marks the forwarded packets with an ECN congestion mark (ECN field is set to 11), and the ECN congestion mark uses the ToS in the IP packet header The last two bits of the field, which have the following meanings: 00 - Transmission of ECN is not supported, non-ECT (ECN-Capable Transport, supported ECN transmission). 10 - Support for ECN transmission, ECT(0). 01 - Yes Transmission of ECN, ECT (1). 11 - CE (Congestion Encountered).