Имею такую ситуацию:
7507 с одним fast в vip2-50 - на нем subint`ы
включен cef/cef distributed
смотрю sh cef int
FastEthernet0/0/0 is up (if_number 3)
  Corresponding hwidb fast_if_number 8
  Corresponding hwidb firstsw->if_number 3
  Internet Protocol processing disabled
  Hardware idb is FastEthernet0/0/0
  Fast switching type 1, interface type 18
  IP Distributed CEF switching enabled
  IP Flow switching turbo vector
  IP Flow CEF switching turbo vector
  Input fast flags 0x0, Output fast flags 0x0
  ifindex 1(1)
  Slot 0 Slot unit 0 VC -1
  Transmit limit accumulator 0xE8001A02 (0xE8001A02)
  IP MTU 1500
FastEthernet0/0/0.1001 is up (if_number 8)
  Corresponding hwidb fast_if_number 10
  Corresponding hwidb firstsw->if_number 3
  Internet address is xxx.xxx.xxx.xxx/30
  ICMP redirects are never sent
  Per packet load-sharing is disabled
  IP unicast RPF check is disabled
  Inbound access list is not set
  Outbound access list is not set
  IP policy routing is disabled
  Packets switched to this interface are dropped to the next slow path
FastEthernet0/0/0.1009 is up (if_number 10)
  Corresponding hwidb fast_if_number 8
  Corresponding hwidb firstsw->if_number 3
  Internet address is xxx.xxx.xxx.xxx/30
  ICMP redirects are never sent
  Per packet load-sharing is disabled
  IP unicast RPF check is disabled
  Inbound access list is not set
  Outbound access list is not set
  IP policy routing is disabled
  Packets switched to this interface are dropped to the next slow path
FastEthernet0/0/0.1016 is up (if_number 11)
  Corresponding hwidb fast_if_number 11
  Corresponding hwidb firstsw->if_number 3
  Internet address is xxx.xxx.xxx.xxx/30
  ICMP redirects are never sent
  Per packet load-sharing is disabled
  IP unicast RPF check is disabled
  Inbound access list is not set
  Outbound access list is not set
  IP policy routing is disabled
  Hardware idb is FastEthernet0/0/0
  Fast switching type 1, interface type 18
  IP Distributed CEF switching enabled
  IP Flow switching turbo vector
  IP Flow CEF switching turbo vector
  Input fast flags 0x0, Output fast flags 0x0
  ifindex 1(1)
  Slot 0 Slot unit 0 VC -1
  Transmit limit accumulator 0xE8001A02 (0xE8001A02)
  IP MTU 1500
создается впечатление что cef не работает .. Packets switched to this interface are dropped to the next slow path
единственная разница между FastEthernet0/0/0.1016 (на котором вроде как все в порядке) и FastEthernet0/0/0.1001,FastEthernet0/0/0.1009
- это то что на них настроен GTS (traffic-shape group бла бла)
и действительно, если убрать с FastEthernet0/0/0.1009, к примеру, traffic-shape -  он становится
  IP Distributed CEF switching enabled
  IP Flow switching turbo vector
  IP Flow CEF switching turbo vector
это что же? GTS не cef switched? не написано нигде такого..
или ios?
или мои руки?
core#sh ver
Cisco Internetwork Operating System Software
IOS (tm) RSP Software (RSP-JSV-M), Version 12.2(31), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Thu 11-Aug-05 16:16 by tinhuang
Image text-base: 0x40010948, data-base: 0x41954000
ROM: System Bootstrap, Version 11.1(8)CA1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
BOOTLDR: RSP Software (RSP-BOOT-M), Version 12.2(10), RELEASE SOFTWARE (fc2)
core uptime is 1 day, 20 hours, 55 minutes
System returned to ROM by reload at 20:44:21 MSK Thu Mar 23 2006
System restarted at 20:47:29 MSK Thu Mar 23 2006
System image file is "disk1:rsp-jsv-mz.122-31.bin"
cisco RSP4 (R5000) processor with 262144K/2072K bytes of memory.
R5000 CPU at 200Mhz, Implementation 35, Rev 2.1, 512KB L2 Cache
Last reset from power-on
G.703/E1 software, Version 1.0.
G.703/JT2 software, Version 1.0.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Bridging software.
TN3270 Emulation software.
Chassis Interface.
1 VIP2 R5K controller (1 FastEthernet).
1 FastEthernet/IEEE 802.3 interface(s)
123K bytes of non-volatile configuration memory.
125440K bytes of ATA PCMCIA card at slot 1 (Sector size 512 bytes).
8192K bytes of Flash internal SIMM (Sector size 256K).
No slave installed in slot 2.
Configuration register is 0x102