问题:
[单选题]32. 如果部署了MPLS VPN的互连网络中的入站PE路由器收到了一个无标签数据包,那么下面哪一项 是正确的?
A.该路由器会添加单个MPLS报头
B.该路由器会添加两个MPLS报头
C.该路由器会(至少)添加一个VPN标签,中间P路由器将使用该标签
D.该路由器会利用FIB和LFIB找到所需的所有标签,并将这些标签添加到IP报头之前
Tags:思科认证CCIE路由和交换分类模拟试题
答案解析:
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