19.某网络运行IS-IS,该网络中台路 由器R4的LSP信息如图所示， 以下描述中正确的有哪些选项? <R4>display isis lsdb 40.000 0000 verbose
Database information for ISIS(1)
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Level-2 Link State Database
LSPID Seq Num Checksum ATT/P/OL
---------------------------------------------------------------------------------------------------------------
4004.0000.0004.00-01* 0x00000001 0x3f11 0/0/0
SOURCE 4004.0000.0004 00
IP-External 10.0.4.4 255.255.255.255 COST: 64
Total LSP(s): 1
*(In TLV)-Leaking Route, *(By LSPID)-Self LSP, +-Self LSP(Extended)，
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