MPLS-TE用两个优先级属性来决定是否可以进行抢占：建立优先级（Setup Priority）和保持优先级（Holding Priority），并定义了8个优先级，优先级的范围是0-7，0最重要。
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holding priority
持有优先
以上为机器翻译结果，长、整句建议使用 人工翻译 。
But next year the main priority is holding what you have but presumably is the challenge of Europe.
BBC: News | BREAKFAST WITH FROST | Interview with David Seaman, Arsenal and England
Their defenders are steady, placing a priority on holding their line, while their attacks usually favor direct passes into the attacking third over the kind of possession-heavy, short touch-passing that Barcelona has made fashionable.
WSJ: English Premier League Soccer: The London Clubs Aren't Dead Yet
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