What is required to enable the use of metrics larger then 63 for traffic engineering in IS-IS?（）
- A、No action required, wide metrics are used by default in IS-IS.
- B、Enable wide-metrics-only under protocols IS-IS.
- C、Enable traffic-engineering under protocols IS-IS.
- D、Disable TLVs 2 and 128 which carry the 6-bit metrics (0-63).
正确答案:B
答案解析:有
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