Hi
I have a cisco 7206VXR with NPE-G1, 1G Memory and running IOS image: c7200-js-mz.123-19.
The maximum limit of active VCs on PA-A3 is 4095, but I am observing high latency and packet drops when the active VCs get upto 3000.
Following are the interface and controller stats:
#sh controllers atm6/0
Interface ATM6/0 is up
Hardware is ENHANCED ATM PA - OC3 (155000Kbps)
Framer is PMC PM5346 S/UNI-155-LITE, SAR is LSI ATMIZER II
Firmware rev: G161, Framer rev: 0, ATMIZER II rev: 3
idb=0x639A48BC, ds=0x639A5B80, vc=0x500F6CA0
slot 6, unit 1, subunit 0, fci_type 0x0056, ticks 3234
4000 rx buffers: size=512, encap=64, trailer=28, magic=4
Curr Stats:
VCC count: current=3062, peak=3070
AAL2 VCC count: 0
AAL2 TX no buffer count: 0
AAL2 RX no buffer count: 0
SAR crashes: Rx SAR=0, Tx SAR=0
rx_cell_lost=14407, rx_no_buffer=0, rx_crc_10=3219, rx_no_mem=0
rx_cell_len=0, rx_no_vcd=93544, rx_cell_throttle=0, tx_aci_err=0
rx_autovc_hash_err 0
Rx Free Ring status:
base=0x3F27C040, size=4096, write=680
Rx Compl Ring status:
base=0x0C64AD80, size=4096, read=3914
Tx Ring status:
base=0x3F7039C0, size=8192, write=6318
Tx Compl Ring status:
base=0x0C3B0040, size=4096, read=159
BFD Cache status:
base=0x639EA5A0, size=6144, read=143
Rx Cache status:
base=0x639EA500, size=16, write=0
Tx Shadow status:
base=0x20093E80, size=8192, read=6303, write=6318
Control data:
rx_max_spins=86, max_tx_count=98, tx_count=15
rx_threshold=2667, rx_count=278, tx_threshold=4608
tx bfd write indx=0x11F6, rx_pool_info=0x500F4CE0
Control data base address:
rx_buf_base = 0x0C3F8EE0 rx_p_base = 0x639ABC40
rx_pak = 0x63919A44 cmd = 0x639AB880
framer = 0x604914F0 framer_cb = 0x500F0D20
framer_base = 0x3F100000 pci_pa_stats = 0x0C39F840
device_base[0] = 0x3F000000 device_base[1] = 0x3F400000
ssram_base[0] = 0x3F200000 ssram_base[1] = 0x3F600000
sdram_base[0] = 0x3F300000 sdram_base[1] = 0x3F700000
pa_cmd_buf[0] = 0x3F27FC00 pa_cmd_buf[1] = 0x3F67FC00
vcd_base[0] = 0x3F200000 vcd_base[1] = 0x3F618000
chip_dump[0] = 0x0C39F86C chip_dump[1] = 0x0C39F96C
sar_buf_base[0] = 0x3F324000 sar_buf_base[1] = 0x3F70C000
bfd_base[0] = 0x3F264000 bfd_base[1] = 0x3F600000
acd_base[0] = 0x3F222080 acd_base[1] = 0x3F638240
Bad particle count = 0
SAR AutoRecovery : Disabled
SAR AR rx stuck count=0 tx stuck count=0
rx_crashes =0 tx_crashes =0
Framer Information:
Framing mode: SONET (STS-3c)
No alarm detected
Facility statistics: current interval elapsed 534 seconds
sbip lbip lfebe pbip pfebe hcse
------------------------------------------------------------
3 0 0 0 1871 1068 0
sbip: Section BIP8
lbip: Line BIP8/24
lfebe: Line FEBE
pbip: Path BIP8
pfebe: Path FEBE
hcse: Rx Cell HCS Error
#sh int atm6/0
ATM6/0 is up, line protocol is up
Hardware is ENHANCED ATM PA
MTU 4470 bytes, sub MTU 4470, BW 149760 Kbit, DLY 80 usec,
reliability 255/255, txload 94/255, rxload 24/255
Encapsulation ATM, loopback not set
Encapsulation(s): AAL5
4095 maximum active VCs, 3063 current VCCs
VC Auto Creation Enabled.
VC idle disconnect time: 300 seconds
0 carrier transitions
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/18/2 (size/max/drops/flushes); Total output drops: 1395753
Queueing strategy: Per VC Queueing
30 second input rate 14158000 bits/sec, 9040 packets/sec
30 second output rate 55515000 bits/sec, 8446 packets/sec
31701163 packets input, 2755844055 bytes, 46242518 no buffer
Received 6 broadcasts, 0 runts, 0 giants, 0 throttles
18824 input errors, 18824 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
29634327 packets output, 1468176365 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Regards
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I have a cisco 7206VXR with NPE-G1, 1G Memory and running IOS image: c7200-js-mz.123-19.
The maximum limit of active VCs on PA-A3 is 4095, but I am observing high latency and packet drops when the active VCs get upto 3000.
Following are the interface and controller stats:
#sh controllers atm6/0
Interface ATM6/0 is up
Hardware is ENHANCED ATM PA - OC3 (155000Kbps)
Framer is PMC PM5346 S/UNI-155-LITE, SAR is LSI ATMIZER II
Firmware rev: G161, Framer rev: 0, ATMIZER II rev: 3
idb=0x639A48BC, ds=0x639A5B80, vc=0x500F6CA0
slot 6, unit 1, subunit 0, fci_type 0x0056, ticks 3234
4000 rx buffers: size=512, encap=64, trailer=28, magic=4
Curr Stats:
VCC count: current=3062, peak=3070
AAL2 VCC count: 0
AAL2 TX no buffer count: 0
AAL2 RX no buffer count: 0
SAR crashes: Rx SAR=0, Tx SAR=0
rx_cell_lost=14407, rx_no_buffer=0, rx_crc_10=3219, rx_no_mem=0
rx_cell_len=0, rx_no_vcd=93544, rx_cell_throttle=0, tx_aci_err=0
rx_autovc_hash_err 0
Rx Free Ring status:
base=0x3F27C040, size=4096, write=680
Rx Compl Ring status:
base=0x0C64AD80, size=4096, read=3914
Tx Ring status:
base=0x3F7039C0, size=8192, write=6318
Tx Compl Ring status:
base=0x0C3B0040, size=4096, read=159
BFD Cache status:
base=0x639EA5A0, size=6144, read=143
Rx Cache status:
base=0x639EA500, size=16, write=0
Tx Shadow status:
base=0x20093E80, size=8192, read=6303, write=6318
Control data:
rx_max_spins=86, max_tx_count=98, tx_count=15
rx_threshold=2667, rx_count=278, tx_threshold=4608
tx bfd write indx=0x11F6, rx_pool_info=0x500F4CE0
Control data base address:
rx_buf_base = 0x0C3F8EE0 rx_p_base = 0x639ABC40
rx_pak = 0x63919A44 cmd = 0x639AB880
framer = 0x604914F0 framer_cb = 0x500F0D20
framer_base = 0x3F100000 pci_pa_stats = 0x0C39F840
device_base[0] = 0x3F000000 device_base[1] = 0x3F400000
ssram_base[0] = 0x3F200000 ssram_base[1] = 0x3F600000
sdram_base[0] = 0x3F300000 sdram_base[1] = 0x3F700000
pa_cmd_buf[0] = 0x3F27FC00 pa_cmd_buf[1] = 0x3F67FC00
vcd_base[0] = 0x3F200000 vcd_base[1] = 0x3F618000
chip_dump[0] = 0x0C39F86C chip_dump[1] = 0x0C39F96C
sar_buf_base[0] = 0x3F324000 sar_buf_base[1] = 0x3F70C000
bfd_base[0] = 0x3F264000 bfd_base[1] = 0x3F600000
acd_base[0] = 0x3F222080 acd_base[1] = 0x3F638240
Bad particle count = 0
SAR AutoRecovery : Disabled
SAR AR rx stuck count=0 tx stuck count=0
rx_crashes =0 tx_crashes =0
Framer Information:
Framing mode: SONET (STS-3c)
No alarm detected
Facility statistics: current interval elapsed 534 seconds
sbip lbip lfebe pbip pfebe hcse
------------------------------------------------------------
3 0 0 0 1871 1068 0
sbip: Section BIP8
lbip: Line BIP8/24
lfebe: Line FEBE
pbip: Path BIP8
pfebe: Path FEBE
hcse: Rx Cell HCS Error
#sh int atm6/0
ATM6/0 is up, line protocol is up
Hardware is ENHANCED ATM PA
MTU 4470 bytes, sub MTU 4470, BW 149760 Kbit, DLY 80 usec,
reliability 255/255, txload 94/255, rxload 24/255
Encapsulation ATM, loopback not set
Encapsulation(s): AAL5
4095 maximum active VCs, 3063 current VCCs
VC Auto Creation Enabled.
VC idle disconnect time: 300 seconds
0 carrier transitions
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/18/2 (size/max/drops/flushes); Total output drops: 1395753
Queueing strategy: Per VC Queueing
30 second input rate 14158000 bits/sec, 9040 packets/sec
30 second output rate 55515000 bits/sec, 8446 packets/sec
31701163 packets input, 2755844055 bytes, 46242518 no buffer
Received 6 broadcasts, 0 runts, 0 giants, 0 throttles
18824 input errors, 18824 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
29634327 packets output, 1468176365 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Regards
FREE pop-up blocking with the new MSN Toolbar http://g.msn.com/8HMAEN/2755??PS=47575"]MSN Toolbar Get it now!