I'm trying to enable flow accounting on one of our M7is. JunOS
version is 9.1R8. No matter what I do, I can't get a flow to export.
I'd appreciate any input to obvious errors, or tips on other things to
try. I've also tried removing sampling from the interface and doing
it with a firewall rule.
Currently, it's configured as follows:
a...@er01> show configuration forwarding-options
sampling {
input {
family inet {
rate 10000;
}
}
output {
cflowd X.X.X.X {
port 2100;
version 5;
no-local-dump;
autonomous-system-type origin;
}
interface sp-1/2/0 {
source-address X.X.X.X; # The IP of an interface that
can reach the Netflow server
}
}
}
a...@er01> show configuration interfaces sp-1/2/0
unit 0 {
family inet {
address 10.0.1.1/32 {
destination 10.0.1.2;
}
}
}
a...@er01> show configuration interfaces ge-0/0/0 unit 3
vlan-id 1;
family inet {
sampling {
input;
}
address X.X.X.X/30 {
preferred;
}
}
When I enable it, for a few minutes nothing seems to happen. Then I
can see memory usage increase to the point there is no free memory on
the ASP, then it begins to give errors. It never tries to export the
flow:
a...@er01> show services accounting memory
Service Accounting interface: sp-1/2/0, Local interface index: 150
Service name: (default sampling)
Interface state: Accounting
Memory utilization
Allocation count: 695912, Free count: 348290, Maximum allocated: 0
Allocations per second: 0, Frees per second: 0
Total memory used (in bytes): 211804592, Total memory free (in
bytes): 7400
a...@er01> show services accounting errors
Service Accounting interface: sp-1/2/0, Local interface index: 150
Service name: (default sampling)
Interface state: Accounting
Error information
Packets dropped (no memory): 8262, Packets dropped (not IP): 0
Packets dropped (not IPv4): 0, Packets dropped (header too
small): 0
Memory allocation failures: 0, Memory free failures: 0
Memory free list failures: 356435
Memory warning: Yes, Memory overload: No, PPS overload: No, BPS
overload: No
a...@er01> show services accounting flow
Service Accounting interface: sp-1/2/0, Local interface index: 150
Service name: (default sampling)
Interface state: Accounting
Flow information
Flow packets: 0, Flow bytes: 0
Flow packets 10-second rate: 0, Flow bytes 10-second rate: 0
Active flows: 0, Total flows: 0
Flows exported: 0, Flows packets exported: 0
Flows inactive timed out: 0, Flows active timed out: 0
Here's the installed PIC details. I've tried bringing it up/down as
well, with the same behavior.
a...@er01> show chassis pic fpc-slot 1 pic-slot 2
FPC slot 1, PIC slot 2 information:
Type ASP - Integrated (Layer-2-3)
State Online
PIC version 1.7
CPU load average 0 percent
Interrupt load average 0 percent
Total DRAM size 256 MB
Memory buffer utilization 0 percent
Memory heap utilization 99 percent
Uptime 14 hours, 49 seconds
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