H12-921_V1.0 · Question #86
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?
The correct answer is C. Valid value is 11. 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…
Question
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?
Options
- AValid value is 10
- BValue 01
- CValid value is 11
- DA value of 00 is in place
How the community answered
(32 responses)- A3% (1)
- B9% (3)
- C81% (26)
- D6% (2)
Explanation
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).
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