ccna routing and switching questions and answers pdf

ccna routing and switching questions and answers pdf

! 10.1.34.4 ISO10589 *Aug 18 09:06:02.699: LABEL_REQUEST type 1 length 8 : Mpls traffic-eng router-id loopback0 mpls traffic-eng area 0 Interface Ethernet0/1 0x2D6E Ip address 10.1.123.1 255.255.255.0 3.0.0.0/32 is subnetted, 1 subnets For the HDLC (Advanced Data Link Control) interface, SNPA is set to " HDLC " Metric: 0 Remaing lifetime LSP lifetime before LSP ID LSP identity Sequence num LSP serial number Tracing the route to 55.55.55.55 75000 i L2 3.3.3.0 [115/20] via 10.1.34.3, Serial0/1 75000 Going is the tunnel . therefore: This bandwidth is reserved for the TE tunnel . If the bandwidth value is not added after the command, the default is 75% of the interface bandwidth. Ip address 5.5.5.5 255.255.255.255 Tunnel mpls traffic-eng path-option 10 dynamic Mpls traffic-eng router-id loopback 0 mpls traffic-eng level-1 0 kbits/sec Local tag OutLabel : FastEthernet1/0, 301 ! 18 We see a lower priority than 5 of the Tunnel , along with the available bandwidth into a 75-20 = 55M . Mpls traffic-eng reoptimize events link-up The tag object in the RESV message is advertised to the upstream router (the penultimate hop). This tag is the inbound tag in the tail router LFIB table. Average rate = 250000 bytes/sec, burst depth = 1000 bytes This state has three values: down , init , up If there is no PSN pseudo node, the situation is like the above picture. The LSPDB of all routers on the LAN is as shown in the figure. The red dotted line in the figure is the adjacency. We see that there are many adjacencies and the LSPDB is huge. So,ccna routing and switching questions and answers pdf, is there a PSN pseudo node? Look at the picture below: There are three HELLO packages in IS-IS : Bytes Label Switched 10.1.34.4 4.4.4.4 !! LSP path Initial database synchronization is performed before the adjacency is formed !!tunnel establishment and retention priority Local *Aug 18 04:37:06.239: SENDER_TEMPLATE type 7 length 12: Show mpls traffic-eng link-management bandwdith-allocation Define source L1/L2 router , which holds two independent LSPDs . The Layer 1 and Layer 2 routing processes are running at the same time . At a layer LSDB maintains the first in a layer LSP information simultaneously to other L1 router advertisement which is an outlet of the region (the L1 router to form a default route one point to the area border routers according to this announcement); it support of two layers function in the trunk with the other router communication, independent of the first and maintains a layer LSDB of 2 layer topology database.