PDF《开始使用前》

264646400 bytes carve size,

4 SDRAM bank(s),

16384 bytes SDRAMpagesize,

3 carve(s) max buffer data size

9248 bytes, min buffer data size

80 bytes 251927/251927 buffers specified/carved 209883344/209883344 bytes sum buffer sizes specified/carved Qnum Head Tail #Qelem LenThresh

6 non-IPC free queues: 123349/123349 (buffers specified/carved), 48.96%,

80 byte data size

1 210

209 123349

262143 75519/75519 (buffers specified/carved), 29.97%,

608 byte data size

2 123552

123551 75519

262143 37759/37759 (buffers specified/carved), 14.98%,

1568 byte data size

3 199069

236827 37759

262143 2516/2516 (buffers specified/carved), 0.99%,

2048 byte data size

4 236828

239343 2516

262143 7551/7551 (buffers specified/carved), 2.99%,

4544 byte data size

5 239344

246894 7551

262143 5033/5033 (buffers specified/carved), 1.99%,

9248 byte data size

6 246895

251927 5033

262143 IPC Queue: 200/200 (buffers specified/carved), 0.7%,

4112 byte data size

30 52

51 200

262143 Multicast Raw Queue:

29 0

0 0

62981 Raw Queue:

31 52

51 0

251928 Interface Queues:

0 210

209 0

262143 最大缓冲区空间是9248个字节.现在,请配置MTU 10000在另一个卡的其他一个接口: Router(config-if)#interface pos5/0 Router(config-if)#mtu ? MTU size in bytes Router(config-if)#mtu

10000 LC-Slot1#show contr frfab queues Carve information for FrFab buffers SDRAM size:

268435456 bytes, address: 20000000, carve base: 2039D100

264646400 bytes carve size,

4 SDRAM bank(s),

16384 bytes SDRAMpagesize,

4 carve(s) max buffer data size

10064 bytes, min buffer data size

80 bytes 257309/257309 buffers specified/carved 213496016/213496016 bytes sum buffer sizes specified/carved Qnum Head Tail #Qelem LenThresh

5 non-IPC free queues: 128556/128556 (buffers specified/carved), 49.96%,

80 byte data size

1 204

203 128556

262143 77133/77133 (buffers specified/carved), 29.97%,

608 byte data size

2 128758

128757 77133

262143 38566/38566 (buffers specified/carved), 14.98%,

1568 byte data size

3 205890

244455 38566

262143 7713/7713 (buffers specified/carved), 2.99%,

4544 byte data size

4 244456

252168 7713

262143 5141/5141 (buffers specified/carved), 1.99%,

10064 byte data size

5 252169

257309 5141

262143 IPC Queue: 200/200 (buffers specified/carved), 0.7%,

4112 byte data size

30 24

23 200

262143 Multicast Raw Queue:

29 0

0 0

64327 Raw Queue:

31 24

23 0

257310 Interface Queues:

0 205

204 0

262143 当前有Frfab队列的四个雕刻,并且最大缓冲区空间更改对10064个字节. 注意:?在SONET上的分组(POS)线卡配置与点对点协议(PPP)封装,最大接收单元(MRU)协商发生 ,但是不调节MTU大小.而且,当MTU在接口时,更改PPP连接没有重置. 接收 信息包 内存 此内存被雕刻到数据包缓冲的不同的池.要看到接收内存如何被雕刻,您能附加到线卡和执行show controller tofab queue命令,如下所示: Router#attach ? slot number of linecard to connect Router#attach 1Entering Console for

1 Port SONET based SRP OC-12c/STM-4 in Slot:

1 Type exit to end this session Press RETURN to get started! LC-Slot1>

enableLC-Slot1# LC-Slot1#show controllers tofab queuesCarve information for ToFab buffers SDRAM size:

33554432 bytes, address: 30000000, carve base:

30029100 33386240 bytes carve size,

4 SDRAM bank(s),

8192 bytes SDRAM pagesize,

2 carve(s) max buffer data size

9248 bytes, min buffer data size